16028-0228 RST 4557 (HD 143839)
16h 02m 48.25s -02° 28' 12.5" P.A. 321.00 sep 2.7 mag 8.00,12.50 Sp K2 dist. 266.67 pc (869.88 l.y.)
| Coord 2000 |
16028-0228 |
|
Discov num |
RST4557 |
|
Comp |
|
|
Coord arcsec 2000 |
16 02 48.25 -02 28 12.5 |
|
| Date first |
1938 |
|
Date last |
2016 |
|
Obs |
4 |
|
| Pa first |
319 |
|
Pa last |
320.9 |
|
P.A. Now (θ) |
320.9° |
|
| Sep first |
2.8 |
|
Sep last |
2.72 |
|
Sep. Now (ρ) |
2.72" |
|
| Mag pri |
8.00 |
|
Mag sec |
12.50 |
|
delta mag (ΔM) |
4.5 |
|
Spectral class |
K2 (yellow-orange) |
|
| Pri motion ra |
-019 |
|
Sec motion ra |
|
|
| Pri motion dec |
-002 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 143839 |
|
Constellation |
Serpens |
|
SAO |
140915 |
|
HIP |
78593 |
|
| Tycho2 |
5036-00654-1 |
|
Gaia DR2 |
4405875794106782592 |
|
HD |
143839 |
|
BD |
BD-02 4094 |
|
| Distance |
266.67 |
|
Distance ly |
869.88 |
|
