18389+0909 HU 248 (HD 172247)
18h 38m 52.27s +09° 08' 37.9" P.A. 295.00 sep 2.0 mag 10.40,10.45 Sp A2
| Coord 2000 |
18389+0909 |
|
Discov num |
HU 248 |
|
Comp |
|
|
Coord arcsec 2000 |
18 38 52.27 +09 08 37.9 |
|
| Date first |
1900 |
|
Date last |
2015 |
|
Obs |
16 |
|
| Pa first |
294 |
|
Pa last |
294.5 |
|
P.A. Now (θ) |
294.5° |
|
| Sep first |
2.0 |
|
Sep last |
1.983 |
|
Sep. Now (ρ) |
1.983" |
|
| Mag pri |
10.40 |
|
Mag sec |
10.45 |
|
delta mag (ΔM) |
0.05 |
|
Spectral class |
A2 (white) |
|
| Pri motion ra |
+001 |
|
Sec motion ra |
+001 |
|
| Pri motion dec |
-005 |
|
Sec motion dec |
-005 |
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 172247 |
|
Constellation |
Ophiuchus |
|
Tycho2 |
1025-01065-1 |
|
Gaia DR2 |
4479504036222510592 |
|
| HD |
172247 |
|
