18094+1311 HEI 558
18h 09m 26.43s +13° 10' 38.2" P.A. 142.00 sep 2.7 mag 10.90,11.70
Coord 2000 |
18094+1311 |
|
Discov num |
HEI 558 |
|
Comp |
|
|
Coord arcsec 2000 |
18 09 26.43 +13 10 38.2 |
|
Date first |
1987 |
|
Date last |
2016 |
|
Obs |
5 |
|
Pa first |
144 |
|
Pa last |
141.9 |
|
P.A. Now (θ) |
141.9° |
|
Sep first |
2.6 |
|
Sep last |
2.669 |
|
Sep. Now (ρ) |
2.669" |
|
Mag pri |
10.90 |
|
Mag sec |
11.70 |
|
delta mag (ΔM) |
0.8 |
|
Spectral class |
|
|
Pri motion ra |
-010 |
|
Sec motion ra |
|
|
Pri motion dec |
+013 |
|
Sec motion dec |
|
|
Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Ophiuchus |
|
Tycho2 |
1021-01401-1 |
|
Gaia DR2 |
4497179205320248704 |
|