20405+1240 HEI 278
20h 40m 31.91s +12° 40' 15.6" P.A. 135.00 sep 3.4 mag 11.06,11.10
| Coord 2000 |
20405+1240 |
|
Discov num |
HEI 278 |
|
Comp |
|
|
Coord arcsec 2000 |
20 40 31.91 +12 40 15.6 |
|
| Date first |
1984 |
|
Date last |
2016 |
|
Obs |
7 |
|
| Pa first |
136 |
|
Pa last |
134.6 |
|
P.A. Now (θ) |
134.6° |
|
| Sep first |
3.0 |
|
Sep last |
3.443 |
|
Sep. Now (ρ) |
3.443" |
|
| Mag pri |
11.06 |
|
Mag sec |
11.10 |
|
delta mag (ΔM) |
0.04 |
|
Spectral class |
|
|
| Pri motion ra |
-045 |
|
Sec motion ra |
-030 |
|
| Pri motion dec |
-022 |
|
Sec motion dec |
-043 |
|
| Notes |
|
|
rPM=0.492
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Delphinus |
|
Tycho2 |
1096-00716-1 |
|
Gaia DR2 |
1755231573419200512 |
|
