20393+2714 HJ 1557 AB (HD 340799)
20h 39m 25.84s +27° 15' 16.2" P.A. 207.00 sep 13.1 mag 10.56,11.47 Sp G0
| Coord 2000 |
20393+2714 |
|
Discov num |
HJ 1557 |
|
Comp |
AB |
|
Coord arcsec 2000 |
20 39 25.84 +27 15 16.2 |
|
| Date first |
1828 |
|
Date last |
2015 |
|
Obs |
19 |
|
| Pa first |
207 |
|
Pa last |
207.3 |
|
P.A. Now (θ) |
207.3° |
|
| Sep first |
6.0 |
|
Sep last |
13.054 |
|
Sep. Now (ρ) |
13.054" |
|
| Mag pri |
10.56 |
|
Mag sec |
11.47 |
|
delta mag (ΔM) |
0.91 |
|
Spectral class |
G0 (yellow) |
|
| Pri motion ra |
-007 |
|
Sec motion ra |
-008 |
|
| Pri motion dec |
-022 |
|
Sec motion dec |
-022 |
|
| Notes |
|
|
rPM=0.043 (< 0.3, Physical double)
This double is physical.
20393+2714 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 340799 |
|
20 39 26 +27 15 16 |
HJ 1557 AB |
2015 |
19 |
207 |
13.1 |
10.56 |
11.47 |
0.91 |
|
<=== |
| Show |
|
|
20 39 25 +27 15 05 |
TDT 2454 Ba,Bb |
2016 |
4 |
46 |
0.9 |
11.47 |
11.80 |
0.33 |
|
|
Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 340799 |
|
Constellation |
Vulpecula |
|
Tycho2 |
2178-01186-1 |
|
Gaia DR2 |
1856411588347623040 |
|
| HD |
340799 |
|
