06290+2013 BTZ 1 Aa,Ab
06h 28m 57.79s +20° 12' 43.8" P.A. 141.00 sep 0.1 mag 4.10,5.10 Sp B6IIIe dist. 166.94 pc (544.56 l.y.)
| Coord 2000 |
06290+2013 |
|
Discov num |
BTZ 1 |
|
Comp |
Aa,Ab |
|
Coord arcsec 2000 |
06 28 57.79 +20 12 43.8 |
|
| Date first |
1920 |
|
Date last |
2021 |
|
Obs |
59 |
|
| Pa first |
124 |
|
Pa last |
140.6 |
|
P.A. Now (θ) |
140.6° |
|
| Sep first |
0.2 |
|
Sep last |
0.063 |
|
Sep. Now (ρ) |
0.063" |
|
| Mag pri |
4.10 |
|
Mag sec |
5.10 |
|
delta mag (ΔM) |
1 |
|
Spectral class |
B6IIIe (blue-white) |
|
| Pri motion ra |
-007 |
|
Sec motion ra |
|
|
| Pri motion dec |
-014 |
|
Sec motion dec |
|
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
06290+2013 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
78423 |
06 28 58 +20 12 44 |
CIA 17 Aa1,2 |
2017 |
4 |
310 |
0.0 |
4.10 |
5.10 |
1.00 |
Y |
|
| Show |
|
78423 |
06 28 58 +20 12 44 |
BTZ 1 Aa,Ab |
2021 |
59 |
141 |
0.1 |
4.10 |
5.10 |
1.00 |
Y |
<=== |
| Show |
Nu Gem |
78423 |
06 28 58 +20 12 44 |
STTA 77 AB |
2017 |
39 |
330 |
112.8 |
4.10 |
8.01 |
3.91 |
|
|
| Show |
|
78423 |
06 28 58 +20 12 44 |
DAL 33 AD |
2007 |
3 |
56 |
53.3 |
4.10 |
12.90 |
8.80 |
|
|
| Show |
|
78423 |
06 28 58 +20 12 44 |
BU 1192 AP |
2007 |
3 |
359 |
24.5 |
4.10 |
15.10 |
11.00 |
|
|
| Show |
|
78423 |
06 28 58 +20 12 44 |
BU 1192 AQ |
2007 |
6 |
14 |
55.1 |
4.10 |
13.90 |
9.80 |
|
|
| Show |
|
78423 |
06 28 58 +20 12 44 |
BU 1192 AR |
2007 |
7 |
256 |
56.5 |
4.10 |
12.60 |
8.50 |
|
|
| Show |
|
78423 |
06 28 58 +20 12 44 |
BU 1192 AS |
2007 |
6 |
12 |
93.1 |
4.10 |
13.17 |
9.07 |
|
|
| Show |
|
78420 |
06 28 54 +20 14 21 |
BU 1192 Ba,Bb |
2021 |
47 |
300 |
0.2 |
8.60 |
8.90 |
0.30 |
Y |
|
Decuple system
7 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Gemini |
|
SAO |
78423 |
|
HIP |
30883 |
|
Tycho2 |
1336-01812-1 |
|
| Gaia DR2 |
3372552842178783616 |
|
HD |
45542 |
|
HR |
2343 |
|
GC |
8394 |
|
| ADS |
5103 |
|
BD |
BD+20 1441 |
|
Bayer |
Nu Geminorum |
|
Bayer name |
Nu Gem |
|
| Flamsteed |
18 Geminorum |
|
Flamsteed name |
18 Gem |
|
FK5 |
1173 |
|
Distance |
166.94 |
|
| Distance ly |
544.56 |
|
Bayer greek |
ν Gem |
|
ORBITAL ELEMENTS
| Period (P) | 19.108y | ± 0.011 |
Periastron (T) | 2011.35y | ± 0.12 |
Semi-major axis (a) | 0.082a | ± 0.001 |
| Eccentricity (e) | 0.238 | ± 0.003 |
Inclination (i) | 74.5° | ± 0.3 |
Longitude of periastron (ω) | 42° | ± 2.6 |
| Node (Ω) | 300.9° | ± 0.4 |
Notes | n | |
Reference | Msn2021a | |
| Equinox | | |
Last observation | 2019 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
126.5 |
0.094 |
| 2001 |
130.6 |
0.087 |
| 2002 |
135.6 |
0.075 |
| 2003 |
142.9 |
0.060 |
| 2004 |
155.6 |
0.043 |
| 2005 |
183.5 |
0.028 |
| 2006 |
234.3 |
0.026 |
| 2007 |
268.6 |
0.039 |
| 2008 |
284.3 |
0.054 |
| 2009 |
293.6 |
0.064 |
| 2010 |
301.1 |
0.066 |
| 2011 |
310.0 |
0.054 |
| 2012 |
327.9 |
0.033 |
| 2013 |
36.7 |
0.018 |
| 2014 |
93.1 |
0.037 |
| 2015 |
107.4 |
0.061 |
| 2016 |
114.2 |
0.079 |
| 2017 |
118.7 |
0.090 |
| 2018 |
122.5 |
0.095 |
| 2019 |
126.1 |
0.094 |
| 2020 |
130.1 |
0.088 |
| 2021 |
135.0 |
0.076 |
| 2022 |
141.9 |
0.062 |
| 2023 |
153.8 |
0.045 |
| 2024 |
179.3 |
0.029 |
| 2025 |
228.9 |
0.025 |
| 2026 |
266.1 |
0.037 |
| 2027 |
283.0 |
0.052 |
| 2028 |
292.7 |
0.064 |
| 2029 |
300.3 |
0.066 |
| 2030 |
308.9 |
0.056 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|
