17181+2742 A 231
17h 18m 07.35s +27° 42' 27.8" P.A. 106.00 sep 1.9 mag 9.55,14.10 Sp G5
Coord 2000 |
17181+2742 |
|
Discov num |
A 231 |
|
Comp |
|
|
Coord arcsec 2000 |
17 18 07.35 +27 42 27.8 |
|
Date first |
1901 |
|
Date last |
2016 |
|
Obs |
5 |
|
Pa first |
114 |
|
Pa last |
105.5 |
|
P.A. Now (θ) |
105.5° |
|
Sep first |
1.8 |
|
Sep last |
1.942 |
|
Sep. Now (ρ) |
1.942" |
|
Mag pri |
9.55 |
|
Mag sec |
14.10 |
|
delta mag (ΔM) |
4.55 |
|
Spectral class |
G5 (yellow) |
|
Pri motion ra |
-041 |
|
Sec motion ra |
|
|
Pri motion dec |
-014 |
|
Sec motion dec |
|
|
Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Hercules |
|
Tycho2 |
2069-00388-1 |
|
Gaia DR2 |
4574382513773049984 |
|
ADS |
10457 |
|