20184+4033 ARN 49 (HD 228839)
20h 18m 24.24s +40° 32' 32.8" P.A. 313.00 sep 30.2 mag 9.59,10.36 Sp K2
| Coord 2000 |
20184+4033 |
|
Discov num |
ARN 49 |
|
Comp |
|
|
Coord arcsec 2000 |
20 18 24.24 +40 32 32.8 |
|
| Date first |
1892 |
|
Date last |
2015 |
|
Obs |
16 |
|
| Pa first |
314 |
|
Pa last |
313.2 |
|
P.A. Now (θ) |
313.2° |
|
| Sep first |
31.6 |
|
Sep last |
30.152 |
|
Sep. Now (ρ) |
30.152" |
|
| Mag pri |
9.59 |
|
Mag sec |
10.36 |
|
delta mag (ΔM) |
0.77 |
|
Spectral class |
K2 (yellow-orange) |
|
| Pri motion ra |
+008 |
|
Sec motion ra |
+015 |
|
| Pri motion dec |
+016 |
|
Sec motion dec |
+008 |
|
| Notes |
|
|
rPM=0.594
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 228839 |
|
Constellation |
Cygnus |
|
SAO |
49446 |
|
Tycho2 |
3155-00379-1 |
|
| Gaia DR2 |
2062342312268666624 |
|
HD |
228839 |
|
DM |
BD+40 4105 |
|
