03284+6015 A 980 AB (HD 21203)
03h 28m 23.56s +60° 15' 20.6" P.A. 319.00 sep 0.4 mag 6.73,8.29 Sp B9V+A1 dist. 178.89 pc (583.54 l.y.)
| Coord 2000 |
03284+6015 |
|
Discov num |
A 980 |
|
Comp |
AB |
|
Coord arcsec 2000 |
03 28 23.56 +60 15 20.6 |
|
| Date first |
1905 |
|
Date last |
2021 |
|
Obs |
54 |
|
| Pa first |
176 |
|
Pa last |
319.2 |
|
P.A. Now (θ) |
336.7° |
|
| Sep first |
0.3 |
|
Sep last |
0.408 |
|
Sep. Now (ρ) |
0.401" |
|
| Mag pri |
6.73 |
|
Mag sec |
8.29 |
|
delta mag (ΔM) |
1.56 |
|
Spectral class |
B9V+A1 (blue-white/white) |
|
| Pri motion ra |
+019 |
|
Sec motion ra |
|
|
| Pri motion dec |
-020 |
|
Sec motion dec |
|
|
| Notes |
O
(Orbital solution) |
|
This double is physical.
03284+6015 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 21203 |
12770 |
03 28 24 +60 15 21 |
A 980 AB |
2021 |
54 |
319 |
0.4 |
6.73 |
8.29 |
1.56 |
Y |
<=== |
| Show |
|
12770 |
03 28 24 +60 15 21 |
B 2563 AB,C |
2016 |
4 |
194 |
27.6 |
6.50 |
13.20 |
6.70 |
|
|
Triple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 21203 |
|
Constellation |
Camelopardalis |
|
SAO |
12770 |
|
HIP |
16177 |
|
| Tycho2 |
4062-00098-1 |
|
Gaia DR2 |
462398760370573568 |
|
HD |
21203 |
|
HR |
1033 |
|
| GC |
4105 |
|
ADS |
2538 |
|
BD |
BD+59 657 |
|
Distance |
178.89 |
|
| Distance ly |
583.54 |
|
ORBITAL ELEMENTS
| Period (P) | 231y | |
Periastron (T) | 1961y | |
Semi-major axis (a) | 0.38a | |
| Eccentricity (e) | 0.18 | |
Inclination (i) | 133.4° | |
Longitude of periastron (ω) | 68° | |
| Node (Ω) | 147.7° | |
Notes | | |
Reference | Baz1994 | |
| Equinox | 1950 | |
Last observation | 1988 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
350.5 |
0.331 |
| 2001 |
349.1 |
0.335 |
| 2002 |
347.8 |
0.339 |
| 2003 |
346.5 |
0.343 |
| 2004 |
345.2 |
0.348 |
| 2005 |
343.9 |
0.352 |
| 2006 |
342.7 |
0.355 |
| 2007 |
341.5 |
0.359 |
| 2008 |
340.4 |
0.363 |
| 2009 |
339.2 |
0.366 |
| 2010 |
338.1 |
0.369 |
| 2011 |
337.0 |
0.373 |
| 2012 |
335.9 |
0.376 |
| 2013 |
334.8 |
0.378 |
| 2014 |
333.8 |
0.381 |
| 2015 |
332.7 |
0.384 |
| 2016 |
331.7 |
0.386 |
| 2017 |
330.7 |
0.388 |
| 2018 |
329.7 |
0.390 |
| 2019 |
328.7 |
0.392 |
| 2020 |
327.7 |
0.394 |
| 2021 |
326.7 |
0.396 |
| 2022 |
325.8 |
0.397 |
| 2023 |
324.8 |
0.399 |
| 2024 |
323.9 |
0.400 |
| 2025 |
322.9 |
0.401 |
| 2026 |
322.0 |
0.402 |
| 2027 |
321.0 |
0.403 |
| 2028 |
320.1 |
0.404 |
| 2029 |
319.2 |
0.404 |
| 2030 |
318.2 |
0.405 |
| 2031 |
317.3 |
0.405 |
| 2032 |
316.4 |
0.405 |
| 2033 |
315.4 |
0.405 |
| 2034 |
314.5 |
0.405 |
| 2035 |
313.6 |
0.405 |
| 2036 |
312.7 |
0.405 |
| 2037 |
311.7 |
0.404 |
| 2038 |
310.8 |
0.404 |
| 2039 |
309.9 |
0.403 |
| 2040 |
308.9 |
0.402 |
| 2041 |
308.0 |
0.401 |
| 2042 |
307.0 |
0.400 |
| 2043 |
306.1 |
0.399 |
| 2044 |
305.1 |
0.398 |
| 2045 |
304.2 |
0.397 |
| 2046 |
303.2 |
0.395 |
| 2047 |
302.2 |
0.394 |
| 2048 |
301.2 |
0.392 |
| 2049 |
300.2 |
0.391 |
| 2050 |
299.2 |
0.389 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
Measures: green=micrometric, blue=interferometric, purple=photographic
|
|
