15268+2840 COU 484 (HD 137739)
15h 26m 47.14s +28° 40' 04.1" P.A. 83.00 sep 0.3 mag 10.19,9.67 Sp K0 dist. 154.32 pc (503.39 l.y.)
| Coord 2000 |
15268+2840 |
|
Discov num |
COU 484 |
|
Comp |
|
|
Coord arcsec 2000 |
15 26 47.14 +28 40 04.1 |
|
| Date first |
1970 |
|
Date last |
2016 |
|
Obs |
18 |
|
| Pa first |
65 |
|
Pa last |
83.4 |
|
P.A. Now (θ) |
83.4° |
|
| Sep first |
0.2 |
|
Sep last |
0.333 |
|
Sep. Now (ρ) |
0.333" |
|
| Mag pri |
10.19 |
|
Mag sec |
9.67 |
|
delta mag (ΔM) |
0.52 |
|
Spectral class |
K0 (yellow-orange) |
|
| Pri motion ra |
-012 |
|
Sec motion ra |
|
|
| Pri motion dec |
-018 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 137739 |
|
Constellation |
Corona Borealis |
|
SAO |
83824 |
|
HIP |
75602 |
|
| Tycho2 |
2032-01539-1 |
|
Gaia DR2 |
1271906396654706816 |
|
HD |
137739 |
|
BD |
BD+29 2667 |
|
| Distance |
154.32 |
|
Distance ly |
503.39 |
|