17588+2155 HJ 2816
17h 58m 50.32s +21° 54' 01.6" P.A. 140.00 sep 9.2 mag 11.10,12.60
| Coord 2000 |
17588+2155 |
|
Discov num |
HJ 2816 |
|
Comp |
|
|
Coord arcsec 2000 |
17 58 50.32 +21 54 01.6 |
|
| Date first |
1830 |
|
Date last |
2015 |
|
Obs |
10 |
|
| Pa first |
138 |
|
Pa last |
140.2 |
|
P.A. Now (θ) |
140.2° |
|
| Sep first |
5.0 |
|
Sep last |
9.164 |
|
Sep. Now (ρ) |
9.164" |
|
| Mag pri |
11.10 |
|
Mag sec |
12.60 |
|
delta mag (ΔM) |
1.5 |
|
Spectral class |
|
|
| Pri motion ra |
-003 |
|
Sec motion ra |
+001 |
|
| Pri motion dec |
-008 |
|
Sec motion dec |
-004 |
|
| Notes |
|
|
rPM=0.662
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Hercules |
|
Tycho2 |
1565-03180-1 |
|
Gaia DR2 |
4576963239370845056 |
|
HD |
341476 |
|