Hickson 50 visual magnitudes?

[morsie]

Does anybody know or have an on line reference as to what the visual magnitudes are of the five group members. I've seen a report that the E member although listed as 20th mag in the blue, plus or minus .1, is around 18.2 visually? Is this true?

Thanks in advance,
Matt Orsie

[wvreeven]

Simbad lists the following magnitudes for the members of HCG 50:

https://simbad.cds.unistra.fr/simbad/sim-id?Ident=HCG++50&NbIdent=query_hlinks&Coord=11+17+06.870%2B54+55+11.28&children=5&submit=children&hlinksdisplay=h_all

Note that only B and R magnitudes are given and you're looking for V magnitudes. The E member (LEDA 34453) is listed to be at B mag 20.32 and R mag 17.64 so the V mag lies somewhere in between.

HyperLEDA gives B 20.04 +/- 0.14 which is slightly different than Simbad. See http://atlas.obs-hp.fr/hyperleda/ledacat.cgi?o=leda%2034453

NED, finally, gives the same values as Simbad. See the Photometry tab at https://ned.ipac.caltech.edu/byname?objname=leda+34453&hconst=67.8&omegam=0.308&omegav=0.692&wmap=4&corr_z=1

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