Communicated through IAUC 3305: NEW GALAXIES OF THE LOCAL GROUP

The LGS list of 5 galaxies

The LGS (acronym for "Local Group (suspected)") list was published by Kowal, Lo and Sargent (1978) of the Hale Observatories. They found 5 dwarf galaxies in the surroundings of the Andromeda Galaxy M31 on Kodak IIIa-J plates obtained with the 122-cm Schmidt telescope at Palomar during Oct. 25-29, 1978, and suspected that 3 of them (LGS 1, 2 and 3) might be hitherto unknown members of the Local Group, which was finally confirmed only for LGS 3, also called the Pisces Dwarf.

Size (in arc minutes), Mag and Remarks are taken from the original IAU circular and cross-checked with NED, while position has been precessed to epoch J2000.0, and radial velocity (in km/s) has been added from Nasa/Caltech's NED.

Object   R.A. (2000) Dec.    Size    Mag.    RV    Remarks

LGS 1 0 17.6 +22 30 1' x 1' 20 +3695 Extremely diffuse LGS 2 0 29.3 +33 21 3 x 2 19 ? " LGS 3 1 03.9 +21 53 2 x 2 18 - 277 Resolved; Mag. 21 stars LGS 4 0 18.6 +30 30 1 x 1 18 ? Red LGS 5 0 29.4 +27 58 1 x 1 20 ?
The Local Group membership of LGS 1 has been disproven because of its high redshift (from the RC3 catalog), while that of LGS 2 was falsified by van den Bergh and Racine (1981), who found it was not resolvable with the Hale and CFHT telescopes. LGS-2 is probably a diffuse reflection nebula (within our Milky Way galaxy), or perhaps a far-away galaxy.

References


Hartmut Frommert [contact]