1994A&A...285..875R

Query : 1994A&A...285..875R

1994A&A...285..875R - Astronomy and Astrophysics, volume 285875-879 (1994/5-3)

NGC 2451 - What is it?.

ROESER S. and BASTIAN U.

Abstract (from CDS):

During the last decade, a debate has arisen whether the grouping of stars called NGC 2451 is a real star cluster. We investigate the corresponding area of the sky kinematically, using proper motions of the PPM catalogue. The group of stars that was originally called NGC 2451 shows a large scatter of their proper motions, which proves that they do not form a cluster. However, close-by we find a group of 24 PPM stars with common proper motion. A colour-magnitude diagram of 19 of these shows an extremely well-defined main sequence, giving a distance of about 220 pc. This cluster is not NGC 2451. We tentatively call it Puppis Moving Group (PMG). There is strong indication for a second cluster at about 400 pc. Photometry, radial velocities and proper motions of stars fainter than the magnitude limit of PPM are needed to further investigate the matter.

Abstract Copyright: ∼

Journal keyword(s): open clusters and associations: individual: NGC 2451 - astrometry

Simbad objects: 36

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Number of rows : 36
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 HD 60928 * 07 35 05.2845152688 -38 52 34.616199828   10.212 9.10     K1III 12 0
2 HD 60957 * 07 35 12.1288471440 -39 03 51.834126888   8.69 8.58     A0V 7 0
3 HD 61375 Pu* 07 37 16.3895114760 -39 03 16.326310860   9.429 9.168     B9.5V 21 0
4 HD 61540 * 07 38 03.4295994552 -39 28 14.372384736   9.78 8.69     G8III 8 0
5 HD 61621 * 07 38 26.2600279824 -38 42 18.830603880   8.132 8.072     A0V 20 0
6 * d01 Pup * 07 39 27.3386401968 -38 18 28.884430663 3.99 4.65 4.84 4.92 5.08 B3V 105 0
7 * d02 Pup Pu* 07 39 43.8155696712 -38 08 21.473167920   5.62 5.77     B5V 53 0
8 HD 62226 SB* 07 41 15.8125770360 -38 32 00.719252124   5.254 5.393     B3V 66 0
9 HD 62252 * 07 41 21.7732381032 -39 37 26.339379816   9.87 9.50     F0V 11 0
10 HD 62376 * 07 41 58.0231253880 -38 31 42.029908788   6.445 6.523     B8V 51 0
11 HD 62375 * 07 42 00.2558073912 -38 20 55.608221148   8.97 7.72     F3V 10 0
12 HD 62415 * 07 42 11.4175681104 -38 31 07.493193552   8.462 8.193     A9V 18 0
13 HD 62479 * 07 42 29.8350605304 -38 06 28.810322820   9.383 9.084     A7IV 34 0
14 HD 62503 * 07 42 30.6146444256 -39 12 04.561991136   7.202 7.259     B9V 35 0
15 HD 62480 * 07 42 31.9024733856 -38 44 21.438685140   9.81 8.39     K2III 9 0
16 HD 62595 * 07 43 06.8063782704 -38 51 49.246060392   7.92 6.91     G6/8III 25 0
17 HD 62660 * 07 43 30.7002545520 -38 08 15.236574216   9.36 8.37     G8III/IV 19 0
18 HD 62803 * 07 44 02.4982921080 -38 49 04.628204868   7.350 7.407     B9V 41 0
19 HD 62782 * 07 44 02.7453774504 -38 08 32.975216736   9.59 8.63     G8III/IV 14 0
20 HD 62876 * 07 44 28.0958555856 -37 59 15.806663916   8.698 8.576     A2V 33 0
21 CD-38 3604 * 07 44 28.1021621904 -38 46 41.671872840   9.467 9.199     A5 17 0
22 HD 62893 * 07 44 34.1830281624 -37 56 34.510493904   5.759 5.870     B8V 69 0
23 HD 62938 * 07 44 44.8852817952 -38 03 13.450316616   7.526 7.523     A0V 37 0
24 * c Pup * 07 45 15.2961339331 -37 58 06.906935781 7.06 5.34 3.61 2.26 1.26 K4III 107 0
25 HD 63080 * 07 45 21.5018412816 -39 20 42.724351824   7.172 7.188     A0IV 36 0
26 NGC 2451 Cl* 07 45.4 -37 58           ~ 165 1
27 HD 63079 * 07 45 27.3624173688 -37 35 46.630622868   6.857 6.909     B9V 56 0
28 HD 63152 ** 07 45 45.26 -38 58 16.0           A8/9V 8 0
29 HD 63198 * 07 45 59.6114175000 -39 26 40.248038760   9.09 8.87     A4IV 21 0
30 HD 63215 Be* 07 46 10.5442184088 -37 56 01.239555912   5.755 5.869     B5V 66 0
31 HD 63291 PM* 07 46 33.4126938360 -37 46 21.247060296   7.670 6.315     K3III 24 0
32 HD 63400 * 07 47 11.7736372968 -37 58 18.722526312   8.36 7.38     G8III 13 0
33 HD 63511 * 07 47 39.2167291416 -38 40 36.151016412   8.922 8.778     A2/3IV 28 0
34 HD 63737 * 07 48 54.8282689488 -37 47 12.589681992   9.06 8.69     F3V 14 0
35 HD 63827 * 07 49 15.1861625136 -37 25 19.726344552   8.88 8.58     A8/9V 13 0
36 HD 63966 * 07 49 57.1826342856 -37 34 10.806506472   9.77 9.55     A2IV/V 8 0

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