1996A&A...308..573M

Query : 1996A&A...308..573M

1996A&A...308..573M - Astronomy and Astrophysics, volume 308573-587 (1996/4-2)

A search for precursors of ultracompact HII regions in a sample of luminous IRAS sources. I. Association with ammonia cores.

MOLINARI S., BRAND J., CESARONI R. and PALLA F.

Abstract (from CDS):

We present observations of NH3 (1,1) and (2,2) lines in two flux-limited samples of IRAS sources selected according to colour criteria which should result in a high fraction of Young Stellar Objects. The first sample contains sources (named 'Low') whose evolutionary status is essentially unknown, while the second sample contains sources (named 'High') possibly associated with ultracompact HII regions, the distinction being based on the IRAS [25-12] colour. Indications from a previous study of H2O maser emission suggest that the sources in the first group may be in an evolutionary phase prior to the appearance of an HII region, thus being among the youngest known high-mass forming objects. Low sources were detected in ammonia with a lower rate than High sources (45% and 80% respectively); the only difference between the two groups is in the linewidths: the (1,1) lines are generally narrower than (2,2) lines in High sources (FWHMs median values are 1.81km/s and 2.00km/s respectively), while the opposite is true in Low sources (FWHMs median values are 1.72km/s and 1.33km/s for the (1,1) and (2,2) lines respectively). We propose that the Low group consists of two distinct populations of evolutionary different objects, based on the (non-) association with ammonia emission. The Low sources showing ammonia emission are characterized by more quiescent envelopes than those surrounding High sources, and the relationships between relevant physical quantities derived from our observations and the IRAS colours suggest that High sources, contrary to Low, may harbour objects which dominate the physical and dynamical properties of the clump, thus possibly implying the relative youth of this subgroup of the Low sources.

Abstract Copyright: ∼

Journal keyword(s): stars: formation - stars: pre-main sequence - stars: circumstellar matter - radio lines: ISM - ISM: HII regions - molecules

VizieR on-line data: <Available at CDS (J/A+A/308/573): table1 table2>

Nomenclature: Table 1: Mol NNN (Nos 1-163).

Simbad objects: 248

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Number of rows : 248
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 IRAS 00070+6503 * 00 09 40.9442347800 +65 19 54.290610516           ~ 18 0
2 IRAS 00117+6412 HII 00 14 26.61 +64 28 30.3           ~ 40 0
3 IRAS 00420+5530 Y*? 00 44 57.31 +55 47 18.1           ~ 61 0
4 IRAS 01420+6401 HII 01 45 40.16013 +64 16 09.0770           ~ 32 1
5 87GB 032059.1+544556 HII 03 24 46.0 +54 56 30           ~ 20 0
6 IRAS 03211+5446 HII 03 24 59.1 +54 57 25           ~ 28 0
7 IRAS 04034+5116 Y*O 04 07 10.99176 +51 24 41.1012           ~ 19 1
8 BFS 34 HII 04 07.2 +51 24           ~ 10 0
9 IRAS 04579+4703 Y*O 05 01 39.661 +47 07 21.92           ~ 51 0
10 IRAS 05137+3919 Cld 05 17 13.3 +39 22 14           ~ 75 0
11 IRAS 05168+3634 mul 05 20 16.2 +36 37 21           ~ 48 0
12 GAL 174.20-00.08 Cld 05 30 45.9 +33 47 56           ~ 210 2
13 NGC 1985 RNe 05 37 47.8 +31 59 24           ~ 145 2
14 IRAS 05373+2349 Y*O 05 40 24.2280641304 +23 50 54.705306336           ~ 68 1
15 Mol 12 Rad 05 40 24.4 +23 50 54           ~ 50 0
16 RAFGL 5165 IR 05 41 37.4 +35 48 49           ~ 21 0
17 GAL 192.16-03.82 HII 05 58 13.4 +16 32 00           ~ 145 1
18 JCMTSE J060840.2+213106 Rad 06 08 40.664 +21 31 07.34           ~ 6 0
19 RAFGL 6366S HII 06 08 41.0 +21 31 01           ~ 95 0
20 [KCW94] 188.794+01.031 HII 06 09 06.984 +21 50 41.40           ~ 6 0
21 IRAS 06061+2151 SFR 06 09 07.8 +21 50 39           ~ 87 0
22 IRAS 06063+2040 HII 06 09 21 +20 39.4           ~ 44 0
23 NGC 2175 OpC 06 09 39 +20 29.2   7.0 6.8     ~ 270 3
24 RAFGL 5184 IR 06 09 51.7 +20 30 04           ~ 40 0
25 MMB G192.600-00.048 Y*O 06 12 54.0100 +17 59 23.200           ~ 430 0
26 IC 2162 HII 06 13 04.1 +17 58 44           ~ 372 2
27 RAFGL 5186 HII 06 13 16.34 +15 22 42.2           ~ 29 1
28 IRAS 06104+1524A HII 06 13 21.40 +15 23 57.2           ~ 22 0
29 SH 2-258 HII 06 13 28 +17 55.5           ~ 78 0
30 IRAS 06105+1756 HII 06 13 28.33753 +17 55 33.0170           ~ 30 0
31 IRAS 06155+2319A HII 06 18 35.2 +23 18 11           ~ 28 0
32 BFS 51 HII 06 18.7 +23 22           ~ 12 0
33 IRAS 06291+0421 IR 06 31 48.48 +04 19 30.7           ~ 29 1
34 NGC 2245 RNe 06 32 41.3 +10 09 34   11       A0 61 0
35 NGC 2247 RNe 06 33 04.4 +10 19 21   8.5       ~ 70 0
36 HD 259431 Ae* 06 33 05.1906369144 +10 19 19.982565336 8.39 8.95 8.72     B6ep 299 1
37 IRAS 06308+0402 Y*O 06 33 31.1 +04 00 07           ~ 48 1
38 RNO 73 ISM 06 33 31.1 +04 00 07           ~ 19 0
39 V* V356 Mon TT* 06 41 01.1161270656 +09 34 52.201148160 19.194 17.872 16.464 15.56 14.71 M1 46 0
40 NGC 2264 140B TT* 06 41 01.3350661008 +09 34 52.620726864 16.946 17.602 16.836 16.28 15.25 M4.0 40 0
41 IRAS 06382+0939 Y*O 06 41 02.81160 +09 36 16.1712         19.89 ~ 93 0
42 IRAS 06584-0852 Y*O 07 00 50.94192 -08 56 30.1812           ~ 37 0
43 GAL 359.977+00.168 Y*O 17 44 53.4 -28 52 20           ~ 24 0
44 LBN 000.03+00.13 HII 17 46.2 -28 51           ~ 16 0
45 Mol 30 Rad 17 48 09.3 -27 43 21           ~ 6 0
46 IRAS 17450-2742 IR 17 48 10 -27 43.2           ~ 17 0
47 IRAS 17495-2624 IR 17 52 41.9 -26 25 32           ~ 10 0
48 Mol 31 Rad 17 52 41.9 -26 25 32           ~ 1 0
49 IRAS 17504-2519 Y*O 17 53 33.7425042749 -25 19 50.366208103           ~ 13 0
50 Mol 32 Rad 17 53 35.2 -25 19 56           ~ 1 0
51 IRAS 17527-2439 HII 17 55 49.1 -24 40 20           ~ 18 0
52 Mol 33 Rad 17 55 49.1 -24 40 20           ~ 1 0
53 Mol 34 Rad 18 00 14.2 -23 28 57           ~ 1 0
54 IRAS 17571-2328 MIR 18 00 15.76368 -23 28 53.5476           ~ 10 0
55 Mol 35 Rad 18 01 18.0 -22 34 57           ~ 1 0
56 IRAS 17582-2234 Y*O 18 01 18.52464 -22 34 57.5364           ~ 18 0
57 M 8 OpC 18 03 37 -24 23.2           ~ 644 1
58 IRAS 18014-2428 IR 18 04 29.6 -24 28 47           ~ 15 0
59 RAFGL 2059 Y*O 18 04 53.1586569336 -24 26 41.642012796 19.905 21.910 18.914   14.078 ~ 146 0
60 IRAS 18024-2119 IR 18 05 25.4 -21 19 41           ~ 17 0
61 IRAS 18024-2231 IR 18 05 30.6 -22 31 36           ~ 10 0
62 LBN 008.55-00.88 HII 18 06.4 -21 39           ~ 12 0
63 Mol 40 Rad 18 06 56.7 -20 51 51           ~ 1 0
64 ISOGAL-P J180658.0-205150 AB* 18 06 57.95832 -20 51 49.9608           O-rich 10 0
65 Mol 41 Rad 18 07 51.6 -20 18 36           ~ 1 0
66 IRAS 18048-2019 HII 18 07 51.6 -20 18 36           ~ 20 1
67 [WBH98] 18048-2019 HII 18 07 51.7 -20 18 35           ~ 17 0
68 Mol 42 Rad 18 11 51.3 -17 31 29           ~ 1 0
69 GAL 012.89+00.49 HII 18 11 51.3 -17 31 29           ~ 217 0
70 Mol 43 Rad 18 15 07.3 -12 02 42           ~ 1 0
71 IRAS 18123-1203 HII 18 15 07.3 -12 02 42           ~ 15 0
72 IRAS 18134-1942 HII 18 16 22.1327 -19 41 27.219           ~ 72 0
73 IRAS 18144-1723 IR 18 17 24.4 -17 22 13           ~ 35 0
74 LBN 018.45+01.87 HII 18 17 52.5 -11 40 58           ~ 60 1
75 IRAS 18151-1208 Y*O 18 17 58.1254 -12 07 24.893           ~ 114 0
76 IRAS 18156-1343 IR 18 18 28.6 -13 42 22           ~ 10 0
77 IRAS 18159-1550 HII 18 18 47.30 -15 48 57.9           ~ 27 0
78 Mol 48 Rad 18 18 47.6 -15 48 54           ~ 1 0
79 Mol 49 Rad 18 18 53.5 -16 47 39           ~ 3 0
80 GAL 014.33-00.64 HII 18 18 53.5 -16 47 39           ~ 75 0
81 SH 2-49 HII 18 19.0 -13 52           ~ 33 1
82 AGAL G014.891-00.404 Y*O 18 19 07.4495 -16 11 34.047           ~ 42 0
83 Mol 51 Rad 18 19 37.7 -16 13 11           ~ 1 0
84 IRAS 18167-1614 LP? 18 19 43.1791079424 -16 13 10.344984960           ~ 10 0
85 Mol 52 Rad 18 20 04.6 -15 46 47           ~ 1 0
86 IRAS 18172-1548 IR 18 20.1 -15 47           ~ 4 0
87 Mol 53 Rad 18 22 36.7 -13 50 11           ~ 1 0
88 IRAS 18197-1351 IR 18 22 36.8 -13 50 11           ~ 11 0
89 Mol 54 Rad 18 24 04.7 -13 19 16           ~ 1 0
90 IRAS 18212-1320 IR 18 24 04.7 -13 19 16           ~ 12 0
91 Mol 55 Rad 18 26 24.3 -12 03 47           ~ 4 0
92 GAL 019.36-00.02 HII 18 26 24.3 -12 03 47           ~ 39 0
93 Mol 56 Rad 18 27 31.1 -11 45 56           ~ 1 0
94 MMB G019.755-00.128 Y*O 18 27 31.602 -11 45 55.17           ~ 54 0
95 IRAS 18256-0742 IR 18 28 20.5 -07 40 22           ~ 14 0
96 Mol 58 Rad 18 28 34.1 -07 35 31           ~ 1 0
97 IRAS 18258-0737 HII 18 28 34.1 -07 35 31           ~ 17 0
98 IRAS 18278-1009 Y*O 18 30 36.0537219097 -10 07 09.780190865           ~ 41 0
99 LBN 028.77+03.43 HII 18 31 26.5 -02 04 22           ~ 255 2
100 IRAS 18288-0158 IR 18 31 26.7 -01 56 35           ~ 8 1
101 Mol 61 Rad 18 33 52.8 -06 58 44           ~ 1 0
102 V* V481 Sct s*b 18 33 55.2781965336 -06 58 38.631350604           LBV_B[e]: 50 0
103 RAFGL 7009S HII 18 34 20.911 -05 59 42.23           ~ 231 0
104 IRAS 18317-0513 HII 18 34 25.62000 -05 10 50.3400           ~ 32 0
105 Mol 63 Rad 18 34 25.9 -05 10 59           ~ 1 0
106 Mol 64 Rad 18 38 13.6 -05 48 17           ~ 1 0
107 IRAS 18355-0550 IR 18 38 13.6 -05 48 17           ~ 6 0
108 Mol 65 Rad 18 38 40.3 -05 35 06           ~ 4 0
109 IRAS 18360-0537 HII 18 38 40.3 -05 35 06           ~ 27 0
110 IRAS 18363-0554 Rad 18 39 03.7 -05 52 15           ~ 10 0
111 GAL 026.60-00.02 HII 18 39 55.9 -05 38 45           ~ 34 1
112 AGAL G026.596-00.022 cor 18 39 55.99 -05 38 47.0           ~ 22 0
113 IRAS 18396-0431 Rad 18 42 18.8 -04 28 37           ~ 14 0
114 Mol 69 Rad 18 43 31.1 -03 44 57           ~ 1 0
115 IRAS 18408-0348 HII 18 43 31.1 -03 44 57           ~ 17 0
116 IRAS 18424-0329 Rad 18 45 03.3 -03 26 49           ~ 12 0
117 IRAS 18445-0222 HII 18 47 10.6 -02 19 08           ~ 31 0
118 Mol 71 Rad 18 47 10.8 -02 19 06           ~ 1 0
119 Mol 72 Rad 18 48 50.9 +00 55 56           ~ 1 0
120 Mol 73 Rad 18 51 24.8 +00 04 19           ~ 2 0
121 IRAS 18488+0000 IR 18 51 24.8 +00 04 19           ~ 32 0
122 GAL 034.4+00.23 HII 18 53 17.4 +01 24 55           ~ 93 1
123 RAFGL 5542 Y*O 18 53 37.88832 +01 50 30.5844           ~ 78 0
124 IRAS 18517+0437 SFR 18 54 13.8 +04 41 32           ~ 89 0
125 [ERG2015] 6375 smm 18 55 16.778 +03 05 07.47           ~ 30 0
126 IRAS 18532+0047 Rad 18 55 50.6 +00 51 22           ~ 18 0
127 IRAS 18537+0145 IR 18 56 15.0 +01 49 03           ~ 9 0
128 Mol 79 Rad 18 56 15.0 +01 49 03           ~ 1 0
129 IRAS 18544+0112 HII 18 56 59.8 +01 16 20           ~ 11 0
130 Mol 80 Rad 18 56 59.8 +01 16 20           ~ 1 0
131 Mol 81 Rad 18 57 42.1 +03 06 04           ~ 4 1
132 IRAS 18551+0302 bub 18 57 42.1 +03 06 04           ~ 21 1
133 IRAS 18565+0349 Rad 18 59 03.4 +03 53 22           ~ 16 0
134 IRAS 18566+0408 Y*O 18 59 09.95520 +04 12 15.6240           ~ 143 0
135 AGAL G040.121+01.500 HII 18 59 14 +07 04.9   13.60 12.74     ~ 35 0
136 IRAS 18571+0349 Rad 18 59 40.0 +03 53 35           ~ 15 0
137 IRAS 18571+0326 IR 18 59 40.2 +03 30 29           ~ 8 0
138 Mol 85 Rad 18 59 40.2 +03 30 29           ~ 1 0
139 IRAS 18586+0106 Rad 19 01 10.6 +01 11 16           ~ 19 0
140 Mol 88 Rad 19 02 06.5 +05 40 33           ~ 1 0
141 IRAS 18596+0536 HII 19 02 06.5 +05 40 33           ~ 10 0
142 IRAS 19001+0402 HII 19 02 36.2 +04 06 58           ~ 10 0
143 Mol 89 Rad 19 02 36.2 +04 06 58           ~ 1 0
144 HRDS G038.643-00.227 bub 19 02 40.4 +04 58 13           ~ 19 0
145 Mol 90 Rad 19 02 42.0 +04 58 49           ~ 1 0
146 IRAS 19012+0505 mul 19 03 43.5 +05 09 49           ~ 31 0
147 [CPA2006] N75 bub 19 03 47.1 +05 09 27           ~ 40 0
148 IRAS 19023+0538 IR 19 04 49.0 +05 42 40           ~ 7 0
149 Mol 92 Rad 19 04 49.0 +05 42 40           ~ 1 0
150 IRAS 19043+0726 Rad 19 06 47.7 +07 31 38           ~ 16 0
151 Mol 94 Rad 19 06 59.3 +05 22 55           ~ 1 0
152 IRAS 19045+0518 Y*O 19 06 59.71488 +05 22 55.3152           ~ 16 0
153 Mol 95 Rad 19 06 59.8 +08 18 43           ~ 1 0
154 [BNM96] 042.096+0.354 Y*O 19 07 00.527 +08 18 44.48           ~ 17 0
155 IRAS 19077+0839 Cld 19 10 09.6 +08 44 11           ~ 11 0
156 IRAS 19088+0902 Rad 19 11 15.9 +09 07 27           ~ 22 0
157 IRAS 19092+0841 Rad 19 11 37.4 +08 46 30           ~ 30 0
158 IRAS 19094+0944 mul 19 11 52.0 +09 49 46           ~ 18 0
159 IRAS 19118+0945 MIR 19 14 14.90664 +09 50 43.5156           ~ 19 0
160 Mol 101 Rad 19 20 37.6 +16 02 31           ~ 1 0
161 NVSS J192038+160225 Rad 19 20 38.3 +16 02 36           ~ 9 1
162 Mol 102 Rad 19 22 07.7 +14 29 20           ~ 4 0
163 IRAS 19198+1423 HII 19 22 07.844 +14 29 19.72           ~ 13 0
164 2MASS J19233684+1728589 Y*O 19 23 36.8145280608 +17 28 58.953209844           ~ 52 0
165 Mol 103 Rad 19 23 37.0 +17 28 59           ~ 9 0
166 LBN 053.54+00.04 HII 19 30 14.9 +18 17 30           ~ 37 0
167 IRAS 19282+1814 HII 19 30 28.1 +18 20 53           ~ 38 0
168 IRAS 19295+1637 Cld 19 31 50.9 +16 43 29           ~ 9 0
169 IRAS 19332+2028 HII 19 35 26.37 +20 35 01.0           ~ 15 1
170 IRAS 19343+2026 MIR 19 36 31.05216 +20 33 09.2196           ~ 19 1
171 HRDS G056.252-00.160 HII 19 36 32.5 +20 33 26           ~ 8 1
172 IRAS 19368+2239 HII 19 38 57.0 +22 46 27           ~ 21 0
173 Mol 108 Rad 19 38 58.1 +22 46 32           ~ 5 0
174 Mol 109 Rad 19 39 33.2 +23 59 55           ~ 7 0
175 MSX6C G059.6032+00.9116 HII 19 39 34.8 +23 59 51           ~ 22 0
176 IRAS 19388+2357 Y*O 19 40 59.1 +24 04 46           ~ 32 0
177 Mol 110 Rad 19 40 59.4 +24 04 39           ~ 10 0
178 Mol 111 Rad 19 47 59.7 +24 50 19           ~ 1 0
179 NVSS J194800+245018 Rad 19 48 00.14 +24 50 18.6           ~ 13 1
180 IRAS 19542+3004 IR 19 56 13.2 +30 12 56           ~ 7 0
181 Mol 112 Rad 19 56 13.2 +30 12 56           ~ 1 0
182 IRAS 20028+2903 HII 20 04 52.77168 +29 11 40.1028           ~ 21 0
183 IRAS 20050+2720 Y*O 20 07 06.549 +27 28 49.10           ~ 107 0
184 Mol 114 Rad 20 07 06.7 +27 28 53           ~ 7 0
185 NAME IRAS 20050+2720 Cluster Cl* 20 07 06.7 +27 28 53           ~ 83 0
186 IRAS 20056+3350 Mas 20 07 31.5 +33 59 39           ~ 30 0
187 Mol 115 Rad 20 07 31.5 +33 59 39           ~ 6 0
188 IRAS 20062+3550 HII 20 08 09.8 +35 59 20           ~ 21 0
189 Mol 116 Rad 20 08 09.8 +35 59 20           ~ 7 0
190 IRAS 20099+3640 IR 20 11 46.3969271064 +36 49 35.253504336           ~ 17 0
191 Mol 117 Rad 20 11 46.4 +36 49 37           ~ 7 0
192 IRAS 20106+3545 IR 20 12 31.3 +35 54 46           ~ 17 0
193 Mol 118 Rad 20 12 31.3 +35 54 46           ~ 8 0
194 IRAS 20126+4104 Y*O 20 14 25.8816769656 +41 13 36.879427236           B2.5-B0.5 469 0
195 Mol 120 Rad 20 19 58.0 +36 07 37           ~ 1 0
196 IRAS 20180+3558 IR 20 19 58.0 +36 07 37           ~ 11 0
197 LBN 077.61+01.59 HII 20 20 39.3 +39 37 52           ~ 80 0
198 Mol 122 Rad 20 23 31.7 +39 57 23           ~ 5 0
199 IRAS 20217+3947 * 20 23 32.2802944368 +39 57 24.820192908           ~ 12 0
200 IRAS 20220+3728 Y*O 20 23 55.22 +37 38 12.3           ~ 50 3
201 IRAS 20227+4154 HII 20 24 31.4 +42 04 17           ~ 32 0
202 IRAS 20278+3521 IR 20 29 46.8321719328 +35 31 42.045300408           ~ 18 0
203 Mol 125 Rad 20 29 46.9 +35 31 39           ~ 6 0
204 Mol 126 Rad 20 30 27.9 +41 15 48           ~ 7 0
205 IRAS 20286+4105 HII 20 30 29.94 +41 15 50.8           ~ 57 1
206 IRAS 20293+4007 Cld 20 31 07.9 +40 17 23           ~ 10 0
207 SH 2-109 HII 20 33.6 +40 20           ~ 16 0
208 Mol 128 Rad 20 33 55.6 +41 22 43           ~ 1 0
209 ECX6-27 HII 20 33 55.7 +41 22 46           ~ 27 1
210 IRAS 20333+4102 Cld 20 35 09.5 +41 13 18           ~ 30 0
211 Mol 129 Rad 20 35 09.5 +41 13 18           ~ 5 0
212 IRAS 20406+4555 HII 20 42 21 +46 05.9           ~ 17 0
213 IRAS 20444+4629 MoC 20 45 59.64 +46 40 06.2           ~ 25 0
214 IRAS 21046+5110 IR 21 06 16.3 +51 22 13           ~ 17 0
215 IRAS 21078+5211 HII 21 09 31.03 +52 24 16.1           ~ 65 0
216 IRAS 21080+4758 Y*O 21 09 45.87672 +48 10 58.9116           ~ 16 0
217 IRAS 21202+5157 HII 21 21 53.577 +52 10 47.30           ~ 26 0
218 IRAS 21307+5049 Y*O 21 32 30.59280 +51 02 16.0368           ~ 49 0
219 PN K 4-45 Y*O 21 35 21.061 +53 47 11.21           ~ 57 2
220 [BGE2002] BIMA 2 Y*O 21 40 42.36 +58 16 09.7           ~ 123 0
221 NAME IC 1396 North CGb 21 40 42.6537 +58 16 01.882           ~ 193 1
222 IRAS 21519+5613 HII 21 53 38.8 +56 27 53           ~ 40 0
223 IRAS 21526+5728 HII 21 54 18.4 +57 42 51           ~ 23 0
224 IRAS 21548+5747 IR 21 56 29.7 +58 01 35           ~ 14 0
225 IRAS 22147+5948 MIR 22 16 29.32512 +60 03 31.0824           ~ 21 0
226 LBN 102.79-00.92 HII 22 19 09.0 +56 04 45           ~ 109 0
227 IRAS 22172+5549 Y*O 22 19 09.14787 +56 05 00.0380           ~ 105 0
228 IRAS 22187+5559 HII 22 20 35.0 +56 14 48           ~ 18 0
229 LDN 1204A HII 22 21 26.68 +63 51 38.2           ~ 120 0
230 IRAS 22267+6244 HII 22 28 29.3 +62 59 44           ~ 30 0
231 LDN 1206 DNe 22 28 52.2 +64 13 43           ~ 70 0
232 IRAS 22272+6358A Cld 22 28 52.2 +64 13 43           ~ 53 0
233 IRAS 22305+5803 Y*O 22 32 23.972 +58 18 57.91           ~ 39 0
234 IRAS 22344+5909 MIR 22 36 20.53128 +59 24 54.7992           ~ 12 0
235 BD+57 2615 Be* 22 47 49.5706150416 +58 08 49.516370232   10.44 10.14     B1-3Ve 73 0
236 IRAS 22506+5944 Y*O 22 52 38.09760 +60 01 01.1928           ~ 60 0
237 IRAS 22551+6221 HII 22 57 05.6 +62 37 48           ~ 42 0
238 [BNM96] 109.098-0.346 HII 22 59 05.5344256224 +59 28 23.280817692           ~ 45 0
239 IRAS 23026+5948 IR 23 04 45.4557529824 +60 04 37.582742172           ~ 24 0
240 IRAS 23140+6121 IR 23 16 11.7 +61 37 45           ~ 35 0
241 IRAS 23146+5954 IR 23 16 48.9 +60 10 46           ~ 20 0
242 EM* MWC 1080 Ae* 23 17 25.5895018656 +60 50 43.444557384   13.24 11.85 11.251   B0eq 331 0
243 IRAS 23314+6033 HII 23 33 43.8650890512 +60 50 26.959478136           ~ 31 0
244 IRAS 23330+6437 EB* 23 35 23.4690987192 +64 54 29.223307296           ~ 13 0
245 Mol 160 Rad 23 40 54.5 +61 10 28           ~ 121 0
246 IRAS 23448+6010 SFR 23 47 19.8 +60 27 23           ~ 19 0
247 IRAS 23507+6230 IR 23 53 12.9 +62 47 00           ~ 19 0
248 IRAS 23545+6508 * 23 57 05.2 +65 25 11           B 52 0

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