| Type | Binary Star |
|---|---|
| Magnitude | 8.95 | Right Ascension | 1h 51' 2.0" (2000) |
| Declination | 21° 6' 56" N |
| Constellation | Aries |
| Description | Binary 8.9/9.3 6" 28" @ 0° |
| Classification | F0 |
Andrew Cooper
Oct 20, 2023 Waikoloa, HI (map)
20cm f/6 Newtonian, Cave Astrola @ 136x
Seeing: 6 Transparency: 7 Moon: 0%
Σ 175 is a visually striking double found 54' west-northwest of Sheratan, the 8.9 magnitude HD 11256 sits to the south with a 9.2 magnitude companion BD+20 296B seen 26" north
Despite the temptation to describe this as a binary based on appearance Gaia EDR3 data reveals otherwise, badly mismatched parallax and proper motion, HD 11256 is much closer with a parallax of 4.98mas while BD+20 296B has a parallax of 9.50mas
| BD+20 296B | HD 11256 | IC 163 |
| IC 167 | IC 1730 | NGC 678 |
| NGC 680 | NGC 691 | NGC 694 |
| NGC 722 | Sheratan |
Drawings, descriptions, and CCD photos are copyright Andrew Cooper unless otherwise noted, no usage without permission.
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