18227+1534 HEI 172
18h 22m 42.13s +15° 33' 27.5" P.A. 184.00 sep 5.9 mag 10.29,11.60
| Coord 2000 |
18227+1534 |
|
Discov num |
HEI 172 |
|
Comp |
|
|
Coord arcsec 2000 |
18 22 42.13 +15 33 27.5 |
|
| Date first |
1897 |
|
Date last |
2015 |
|
Obs |
9 |
|
| Pa first |
187 |
|
Pa last |
184.3 |
|
P.A. Now (θ) |
184.3° |
|
| Sep first |
5.3 |
|
Sep last |
5.877 |
|
Sep. Now (ρ) |
5.877" |
|
| Mag pri |
10.29 |
|
Mag sec |
11.60 |
|
delta mag (ΔM) |
1.31 |
|
Spectral class |
|
|
| Pri motion ra |
+000 |
|
Sec motion ra |
+002 |
|
| Pri motion dec |
-004 |
|
Sec motion dec |
-013 |
|
| Notes |
|
|
rPM=0.701
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Hercules |
|
Tycho2 |
1568-01977-1 |
|
Gaia DR2 |
4521749476275545344 |
|