LEDA 2108986
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| LEDA 2108986 | |
|---|---|
 | |
| Observation data (J2000 epoch) | |
| Constellation | Boötes |
| Right ascension | 15h 03m 15.557s[1] |
| Declination | +37° 45′ 57.96″[1] |
| Distance | 45.7 Mpc (149 million ly) h−1 0.678 |
| Characteristics | |
| Type | ES, E/S0[2] |
| Other designations | |
| 2MASX J15031550+3745580, SDSS J150315.54+374558.0[1] | |
LEDA 2108986,[3] also known by its Case Western Reserve University designation "Case Galaxy 611" (CG 611),[4] is an extremely isolated, early-type dwarf galaxy[5][6][7] with an embedded spiral structure residing in what is likely an intermediate-scale disk.[8] The galaxy was discovered in 1987 by Sanduleak and Pesch, and is located at a distance of about 45.7 Mpc (149 million ly) in the Boötes Void and has no significant neighbours within 2.5 Mpc.
The galaxy may be a counterpart to the rectangular-shaped galaxy LEDA 74886, in that they both appear to contain an intermediate-scale disk. In the case of LEDA 74886, that disk is orientated edge-on to our line of sight. The "early-type galaxy" class is commonly known to contain elliptical galaxies (E) with no substantial stellar disk (perhaps just a small nuclear disk) and lenticular galaxies (S0) with their large-scale disks that dominate the light at large radii. Bridging these two types of galaxies are the ES galaxies[9] with their intermediate-scale disks, referred to as "Ellicular" galaxies in recent works.[8]