18368+2120 HU 323 (HD 171973)
18h 36m 48.02s +21° 20' 02.4" P.A. 143.00 sep 0.2 mag 8.73,9.35 Sp A0 dist. 704.23 pc (2297.2 l.y.)
Coord 2000 |
18368+2120 |
|
Discov num |
HU 323 |
|
Comp |
|
|
Coord arcsec 2000 |
18 36 48.02 +21 20 02.4 |
|
Date first |
1901 |
|
Date last |
2013 |
|
Obs |
10 |
|
Pa first |
153 |
|
Pa last |
142.5 |
|
P.A. Now (θ) |
142.5° |
|
Sep first |
0.2 |
|
Sep last |
0.217 |
|
Sep. Now (ρ) |
0.217" |
|
Mag pri |
8.73 |
|
Mag sec |
9.35 |
|
delta mag (ΔM) |
0.62 |
|
Spectral class |
A0 (white) |
|
Pri motion ra |
+000 |
|
Sec motion ra |
|
|
Pri motion dec |
-006 |
|
Sec motion dec |
|
|
Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 171973 |
|
Constellation |
Hercules |
|
SAO |
86242 |
|
HIP |
91252 |
|
Tycho2 |
1582-01472-1 |
|
Gaia DR2 |
4531839758896577408 |
|
HD |
171973 |
|
BD |
BD+21 3495 |
|
Distance |
704.23 |
|
Distance ly |
2297.2 |
|