18379-0023 STF 2347 (HD 172028)
18h 37m 56.63s -00° 23' 09.1" P.A. 259.00 sep 3.4 mag 8.07,9.75 Sp B2V dist. 657.89 pc (2146.04 l.y.)
| Coord 2000 |
18379-0023 |
|
Discov num |
STF2347 |
|
Comp |
|
|
Coord arcsec 2000 |
18 37 56.63 -00 23 09.1 |
|
| Date first |
1829 |
|
Date last |
2001 |
|
Obs |
34 |
|
| Pa first |
259 |
|
Pa last |
259 |
|
P.A. Now (θ) |
259° |
|
| Sep first |
3.2 |
|
Sep last |
3.35 |
|
Sep. Now (ρ) |
3.35" |
|
| Mag pri |
8.07 |
|
Mag sec |
9.75 |
|
delta mag (ΔM) |
1.68 |
|
Spectral class |
B2V (blue-white) |
|
| Pri motion ra |
+026 |
|
Sec motion ra |
+001 |
|
| Pri motion dec |
-007 |
|
Sec motion dec |
-009 |
|
| Notes |
|
|
rPM=0.931
This double is not physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 172028 |
|
Constellation |
Serpens |
|
SAO |
142454 |
|
HIP |
91352 |
|
| Tycho2 |
5113-00445-1 |
|
HD |
172028 |
|
GC |
25472 |
|
BD |
BD-00 3523 |
|
| Distance |
657.89 |
|
Distance ly |
2146.04 |
|
