17551+3135 ITF 21
17h 55m 06.54s +31° 34' 31.1" P.A. 313.00 sep 5.4 mag 17.50,19.00 Sp K4V+K7V
| Coord 2000 |
17551+3135 |
|
Discov num |
ITF 21 |
|
Comp |
|
|
Coord arcsec 2000 |
17 55 06.54 +31 34 31.1 |
|
| Date first |
1952 |
|
Date last |
2015 |
|
Obs |
6 |
|
| Pa first |
310 |
|
Pa last |
312.5 |
|
P.A. Now (θ) |
312.5° |
|
| Sep first |
5.1 |
|
Sep last |
5.442 |
|
Sep. Now (ρ) |
5.442" |
|
| Mag pri |
17.50 |
|
Mag sec |
19.00 |
|
delta mag (ΔM) |
1.5 |
|
Spectral class |
K4V+K7V (yellow-orange/yellow-orange) |
|
| Pri motion ra |
+009 |
|
Sec motion ra |
+009 |
|
| Pri motion dec |
-015 |
|
Sec motion dec |
-015 |
|
| Notes |
V
(Proper motion indicates physical) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Hercules |
|
Gaia DR2 |
4603813519471105280 |
|
