01350-2955 DAW 31 AB
01h 35m 00.96s -29° 54' 38.0" P.A. 258.00 sep 0.2 mag 7.51,8.94 Sp K1V dist. 21.63 pc (70.56 l.y.)
| Coord 2000 |
01350-2955 |
|
Discov num |
DAW 31 |
|
Comp |
AB |
|
Coord arcsec 2000 |
01 35 00.96 -29 54 38.0 |
|
| Date first |
1920 |
|
Date last |
2020 |
|
Obs |
109 |
|
| Pa first |
273 |
|
Pa last |
257.5 |
|
P.A. Now (θ) |
7.2° |
|
| Sep first |
0.2 |
|
Sep last |
0.204 |
|
Sep. Now (ρ) |
0.159" |
|
| Mag pri |
7.51 |
|
Mag sec |
8.94 |
|
delta mag (ΔM) |
1.43 |
|
Spectral class |
K1V (yellow-orange) |
|
| Pri motion ra |
+157 |
|
Sec motion ra |
|
|
| Pri motion dec |
+115 |
|
Sec motion dec |
|
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
01350-2955 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
193189 |
01 35 01 -29 54 38 |
DAW 31 AB |
2020 |
109 |
258 |
0.2 |
7.51 |
8.94 |
1.43 |
Y |
<=== |
| Show |
BB Scl |
193189 |
01 35 01 -29 54 38 |
BU 1000 AB,C |
2020 |
54 |
7 |
1.6 |
7.20 |
11.50 |
4.30 |
Y |
|
| Show |
|
193189 |
01 35 01 -29 54 38 |
BU 1000 AB,D |
2015 |
16 |
19 |
130.8 |
7.26 |
8.80 |
1.54 |
|
|
Quadruple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Var name |
BB Scl |
|
Constellation |
Sculptor |
|
SAO |
193189 |
|
HIP |
7372 |
|
| Tycho2 |
6428-01616-1 |
|
Gaia DR2 |
5022972468946212352 |
|
HD |
9770 |
|
GC |
1920 |
|
| GL |
Gl 60A |
|
CD |
CD-30 529 |
|
CP |
CP-30 181 |
|
Distance |
21.63 |
|
| Distance ly |
70.56 |
|
ORBITAL ELEMENTS
| Period (P) | 4.5595y | ± 0.0014 |
Periastron (T) | 2010.127y | ± 0.006 |
Semi-major axis (a) | 0.1669a | ± 0.0006 |
| Eccentricity (e) | 0.3142 | ± 0.0022 |
Inclination (i) | 11.9° | ± 1.7 |
Longitude of periastron (ω) | 298.9° | ± 6 |
| Node (Ω) | 168.6° | ± 6.1 |
Notes | n | |
Reference | Tok2021b | |
| Equinox | | |
Last observation | | |
Grade | 1 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
352.2 |
0.174 |
| 2001 |
106.7 |
0.113 |
| 2002 |
221.0 |
0.170 |
| 2003 |
275.3 |
0.213 |
| 2004 |
320.4 |
0.204 |
| 2005 |
29.1 |
0.140 |
| 2006 |
170.0 |
0.131 |
| 2007 |
248.0 |
0.195 |
| 2008 |
294.7 |
0.216 |
| 2009 |
344.5 |
0.182 |
| 2010 |
87.6 |
0.114 |
| 2011 |
212.2 |
0.162 |
| 2012 |
269.8 |
0.210 |
| 2013 |
314.7 |
0.208 |
| 2014 |
17.4 |
0.149 |
| 2015 |
155.1 |
0.124 |
| 2016 |
241.4 |
0.189 |
| 2017 |
289.5 |
0.216 |
| 2018 |
337.4 |
0.189 |
| 2019 |
69.5 |
0.118 |
| 2020 |
202.5 |
0.154 |
| 2021 |
264.2 |
0.207 |
| 2022 |
309.1 |
0.211 |
| 2023 |
7.2 |
0.159 |
| 2024 |
138.4 |
0.118 |
| 2025 |
234.3 |
0.182 |
| 2026 |
284.3 |
0.215 |
| 2027 |
330.8 |
0.195 |
| 2028 |
52.9 |
0.125 |
| 2029 |
191.7 |
0.146 |
| 2030 |
258.4 |
0.203 |
|
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Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
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Measures: green=micrometric, blue=interferometric, purple=photographic |
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