00240-0329 BU 488 AB (HD 1978)
00h 23m 59.82s -03° 28' 31.0" P.A. 340.00 sep 3.3 mag 7.41,10.28 Sp A2V dist. 131.93 pc (430.36 l.y.)
| Coord 2000 |
00240-0329 |
|
Discov num |
BU 488 |
|
Comp |
AB |
|
Coord arcsec 2000 |
00 23 59.82 -03 28 31.0 |
|
| Date first |
1878 |
|
Date last |
2016 |
|
Obs |
22 |
|
| Pa first |
348 |
|
Pa last |
340.1 |
|
P.A. Now (θ) |
340.1° |
|
| Sep first |
3.3 |
|
Sep last |
3.331 |
|
Sep. Now (ρ) |
3.331" |
|
| Mag pri |
7.41 |
|
Mag sec |
10.28 |
|
delta mag (ΔM) |
2.87 |
|
Spectral class |
A2V (white) |
|
| Pri motion ra |
+020 |
|
Sec motion ra |
+019 |
|
| Pri motion dec |
-012 |
|
Sec motion dec |
-006 |
|
| Notes |
N
W
(See Notes, ) |
|
rPM=0.261 (< 0.3, Physical double)
This double is physical.
00240-0329 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 1978 |
128739 |
00 23 60 -03 28 31 |
BU 488 AB |
2016 |
22 |
340 |
3.3 |
7.41 |
10.28 |
2.87 |
|
<=== |
| Show |
|
128739 |
00 23 60 -03 28 31 |
BU 488 AC |
2015 |
5 |
58 |
40.3 |
7.41 |
12.40 |
4.99 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 1978 |
|
Constellation |
Pisces |
|
SAO |
128739 |
|
HIP |
1900 |
|
| Tycho2 |
4668-00492-1 |
|
Gaia DR2 |
2540269475350780544 |
|
HD |
1978 |
|
BD |
BD-04 40 |
|
| Distance |
131.93 |
|
Distance ly |
430.36 |
|
