08047+4717 A 2050 AB
08h 04m 44.45s +47° 17' 23.6" P.A. 279.00 sep 0.2 mag 9.70,9.70 Sp F5 dist. 259.07 pc (845.09 l.y.)
| Coord 2000 |
08047+4717 |
|
Discov num |
A 2050 |
|
Comp |
AB |
|
Coord arcsec 2000 |
08 04 44.45 +47 17 23.6 |
|
| Date first |
1909 |
|
Date last |
2007 |
|
Obs |
14 |
|
| Pa first |
291 |
|
Pa last |
278.5 |
|
P.A. Now (θ) |
293.2° |
|
| Sep first |
0.2 |
|
Sep last |
0.19 |
|
Sep. Now (ρ) |
0.239" |
|
| Mag pri |
9.70 |
|
Mag sec |
9.70 |
|
delta mag (ΔM) |
0 |
|
Spectral class |
F5 (yellow-white) |
|
| Pri motion ra |
+001 |
|
Sec motion ra |
|
|
| Pri motion dec |
-011 |
|
Sec motion dec |
|
|
| Notes |
O
(Orbital solution) |
|
This double is physical.
08047+4717 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
42157 |
08 04 44 +47 17 24 |
A 2050 AB |
2007 |
14 |
279 |
0.2 |
9.70 |
9.70 |
0.00 |
Y |
<=== |
| Show |
HD 66263 |
42157 |
08 04 44 +47 17 24 |
STF 1174 AB,C |
2019 |
34 |
214 |
6.0 |
8.97 |
9.33 |
0.36 |
|
|
Triple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Lynx |
|
SAO |
42157 |
|
HIP |
39533 |
|
Tycho2 |
3408-02912-1 |
|
| Gaia DR2 |
932851782702639872 |
|
HD |
66263 |
|
GC |
10939 |
|
ADS |
6552 |
|
| BD |
BD+47 1522 |
|
Distance |
259.07 |
|
Distance ly |
845.09 |
|
ORBITAL ELEMENTS
| Period (P) | 114.84y | |
Periastron (T) | 1986.22y | |
Semi-major axis (a) | 0.152a | |
| Eccentricity (e) | 0.753 | |
Inclination (i) | 22.7° | |
Longitude of periastron (ω) | 40.3° | |
| Node (Ω) | 89.4° | |
Notes | | |
Reference | Zir2002c | |
| Equinox | | |
Last observation | 1996 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
266.3 |
0.144 |
| 2001 |
268.3 |
0.151 |
| 2002 |
270.1 |
0.157 |
| 2003 |
271.9 |
0.163 |
| 2004 |
273.5 |
0.169 |
| 2005 |
275.0 |
0.174 |
| 2006 |
276.4 |
0.179 |
| 2007 |
277.7 |
0.184 |
| 2008 |
279.0 |
0.189 |
| 2009 |
280.2 |
0.193 |
| 2010 |
281.3 |
0.198 |
| 2011 |
282.4 |
0.202 |
| 2012 |
283.5 |
0.206 |
| 2013 |
284.5 |
0.210 |
| 2014 |
285.5 |
0.213 |
| 2015 |
286.4 |
0.217 |
| 2016 |
287.4 |
0.220 |
| 2017 |
288.2 |
0.223 |
| 2018 |
289.1 |
0.226 |
| 2019 |
290.0 |
0.229 |
| 2020 |
290.8 |
0.232 |
| 2021 |
291.6 |
0.234 |
| 2022 |
292.4 |
0.236 |
| 2023 |
293.2 |
0.239 |
| 2024 |
293.9 |
0.241 |
| 2025 |
294.7 |
0.243 |
| 2026 |
295.4 |
0.245 |
| 2027 |
296.2 |
0.246 |
| 2028 |
296.9 |
0.248 |
| 2029 |
297.6 |
0.250 |
| 2030 |
298.3 |
0.251 |
|
|
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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