03350+6002 STF 400 AB (HD 21903)
03h 35m 01.04s +60° 02' 29.0" P.A. 269.00 sep 1.6 mag 6.79,7.97 Sp F3V dist. 53.36 pc (174.06 l.y.)
| Coord 2000 |
03350+6002 |
|
Discov num |
STF 400 |
|
Comp |
AB |
|
Coord arcsec 2000 |
03 35 01.04 +60 02 29.0 |
|
| Date first |
1829 |
|
Date last |
2018 |
|
Obs |
149 |
|
| Pa first |
283 |
|
Pa last |
268.8 |
|
P.A. Now (θ) |
269.1° |
|
| Sep first |
1.5 |
|
Sep last |
1.634 |
|
Sep. Now (ρ) |
1.637" |
|
| Mag pri |
6.79 |
|
Mag sec |
7.97 |
|
delta mag (ΔM) |
1.18 |
|
Spectral class |
F3V (yellow-white) |
|
| Pri motion ra |
-025 |
|
Sec motion ra |
-025 |
|
| Pri motion dec |
+028 |
|
Sec motion dec |
+028 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
03350+6002 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 21903 |
24111 |
03 35 01 +60 02 29 |
STF 400 AB |
2018 |
149 |
269 |
1.6 |
6.79 |
7.97 |
1.18 |
Y |
<=== |
| Show |
|
24111 |
03 35 01 +60 02 29 |
STF 400 AB,C |
2008 |
10 |
236 |
92.3 |
6.79 |
10.82 |
4.03 |
|
|
Triple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 21903 |
|
Constellation |
Camelopardalis |
|
SAO |
24111 |
|
HIP |
16712 |
|
| Tycho2 |
4062-01235-1 |
|
Gaia DR2 |
450345084978808704 |
|
HD |
21903 |
|
HR |
1077 |
|
| GC |
4250 |
|
ADS |
2612 |
|
BD |
BD+59 675 |
|
Distance |
53.36 |
|
| Distance ly |
174.06 |
|
ORBITAL ELEMENTS
| Period (P) | 267.1y | ± 7.7 |
Periastron (T) | 1939.07y | ± 0.74 |
Semi-major axis (a) | 1.112a | ± 0.01 |
| Eccentricity (e) | 0.697 | ± 0.016 |
Inclination (i) | 68.1° | ± 1.1 |
Longitude of periastron (ω) | 34.6° | ± 2 |
| Node (Ω) | 82.7° | ± 0.87 |
Notes | n | |
Reference | Rbr2018 | |
| Equinox | 2000 | |
Last observation | 2015 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
264.9 |
1.464 |
| 2001 |
265.1 |
1.474 |
| 2002 |
265.3 |
1.485 |
| 2003 |
265.5 |
1.495 |
| 2004 |
265.7 |
1.505 |
| 2005 |
265.9 |
1.514 |
| 2006 |
266.1 |
1.523 |
| 2007 |
266.3 |
1.532 |
| 2008 |
266.5 |
1.541 |
| 2009 |
266.7 |
1.549 |
| 2010 |
266.8 |
1.557 |
| 2011 |
267.0 |
1.565 |
| 2012 |
267.2 |
1.572 |
| 2013 |
267.4 |
1.580 |
| 2014 |
267.6 |
1.587 |
| 2015 |
267.7 |
1.593 |
| 2016 |
267.9 |
1.600 |
| 2017 |
268.1 |
1.606 |
| 2018 |
268.3 |
1.612 |
| 2019 |
268.4 |
1.617 |
| 2020 |
268.6 |
1.622 |
| 2021 |
268.8 |
1.628 |
| 2022 |
268.9 |
1.632 |
| 2023 |
269.1 |
1.637 |
| 2024 |
269.3 |
1.641 |
| 2025 |
269.4 |
1.645 |
| 2026 |
269.6 |
1.649 |
| 2027 |
269.8 |
1.653 |
| 2028 |
269.9 |
1.656 |
| 2029 |
270.1 |
1.660 |
| 2030 |
270.2 |
1.663 |
|
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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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