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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
Simbad lists the following magnitudes for the members of HCG 50:
https://simbad.cds.unistra.fr/simbad...sdisplay=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/led...o=leda%2034453
NED, finally, gives the same values as Simbad. See the Photometry tab at https://ned.ipac.caltech.edu/byname?...map=4&corr_z=1