NGC 257

Query : NGC 257

Basic data :
NGC 257 -- Galaxy towards a Group of Galaxies
Other object types: otypes_help 		G (2016A&A,LEDA,...), GiG (2007ApJ,[CHM2007]), IR (IRAS,PSCz), AG? (2020MNRAS), * (Gaia)
ICRS coord. (ep=J2000) : 		00 48 01.5091790304 +08 17 49.505819100 (Optical) [ 1.9049 0.5861 90 ] C 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		00 45 25.8103450007 +08 01 28.029080741 [ 1.9049 0.5861 90 ]
Gal coord. (ep=J2000) : 		121.4756472745139 -54.5650124846013 [ 1.9049 0.5861 90 ]
Radial velocity / Redshift / cz : 		V(km/s) 5261 [3] / z(emission) 0.017706 [0.000010] / cz 5307.98 [3.00]
   (Rad) C 2022ApJS..261...21Y
Morphological type: 		Sc C 2021A&A...648A..64K
Angular size (arcmin): 		1.76025 1.15156 87 (Opt) B 2023ApJS..269....3M
Fluxes (8) :
B 13.7 [~] E ~
G 19.018517 [0.012692] C 2020yCat.1350....0G
J 10.513 [0.022] C 2006AJ....131.1163S
H 9.795 [0.027] C 2006AJ....131.1163S
K 9.510 [0.033] C 2006AJ....131.1163S
g (AB) 13.2534 [0.0047] B 2023ApJS..269....3M
r (AB) 12.5116 [0.0050] B 2023ApJS..269....3M
z (AB) 11.8963 [0.0057] B 2023ApJS..269....3M
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Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 2 : 3 Display criteria :

Identifiers (16) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

NGC 257 2MASX J00480150+0817494 UZC J004801.6+081748 [LHG93] F0045+0801
IRAS F00454+0801 MCG+01-03-003 Z 410-6 [M98c] 004525.9+080127
IRAS 00454+0801 PSCz Q00454+0801 Z 0045.5+0803 Gaia DR2 2557655949641435904
LEDA 2818 UGC 493 [CHM2007] LDC 46 J004801.50+0817494 Gaia DR3 2557655949640915584

References (95 between 1850 and 2026) (Total 95)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Collections of Measurements Description of Measurements

Velocities : 11    Distance : 4   

   

External archives :

Data at NED - NASA/IPAC Extragalactic Database : NGC 257

Link by name to the catalogue in VizieR :

NGC 257 IRAS F00454+0801 IRAS 00454+0801 2MASX J00480150+0817494 UGC 493
Gaia DR2 2557655949641435904 Gaia DR3 2557655949640915584

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