20171+4127 ARN 97 (HD 228742)
20h 17m 01.24s +41° 26' 45.3" P.A. 220.00 sep 12.8 mag 9.96,10.71 Sp OB
| Coord 2000 |
20171+4127 |
|
Discov num |
ARN 97 |
|
Comp |
|
|
Coord arcsec 2000 |
20 17 01.24 +41 26 45.3 |
|
| Date first |
1892 |
|
Date last |
2015 |
|
Obs |
12 |
|
| Pa first |
221 |
|
Pa last |
220 |
|
P.A. Now (θ) |
220° |
|
| Sep first |
12.6 |
|
Sep last |
12.79 |
|
Sep. Now (ρ) |
12.79" |
|
| Mag pri |
9.96 |
|
Mag sec |
10.71 |
|
delta mag (ΔM) |
0.75 |
|
Spectral class |
OB (blue) |
|
| Pri motion ra |
-001 |
|
Sec motion ra |
-002 |
|
| Pri motion dec |
-004 |
|
Sec motion dec |
-006 |
|
| Notes |
|
|
rPM=0.354
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 228742 |
|
Constellation |
Cygnus |
|
Tycho2 |
3159-00885-1 |
|
Gaia DR2 |
2068584072283942400 |
|
| HD |
228742 |
|
