17231+2545 HO 415 (HD 157581)
17h 23m 07.69s +25° 45' 11.1" P.A. 345.00 sep 0.9 mag 8.83,9.67 Sp F5
Coord 2000 |
17231+2545 |
|
Discov num |
HO 415 |
|
Comp |
|
|
Coord arcsec 2000 |
17 23 07.69 +25 45 11.1 |
|
Date first |
1891 |
|
Date last |
2015 |
|
Obs |
50 |
|
Pa first |
334 |
|
Pa last |
344.6 |
|
P.A. Now (θ) |
344.6° |
|
Sep first |
0.8 |
|
Sep last |
0.85 |
|
Sep. Now (ρ) |
0.85" |
|
Mag pri |
8.83 |
|
Mag sec |
9.67 |
|
delta mag (ΔM) |
0.84 |
|
Spectral class |
F5 (yellow-white) |
|
Pri motion ra |
-001 |
|
Sec motion ra |
-001 |
|
Pri motion dec |
+016 |
|
Sec motion dec |
+016 |
|
Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 157581 |
|
Constellation |
Hercules |
|
Tycho2 |
2078-00223-1 |
|
Gaia DR2 |
4570903384104572160 |
|
HD |
157581 |
|
ADS |
10514 |
|