12597-0349 CHR 39 Aa,Ab
12h 59m 39.55s -03° 48' 43.0" P.A. 317.00 sep 0.1 mag 5.90,8.30 Sp B9.5V dist. 77.94 pc (254.24 l.y.)
| Coord 2000 |
12597-0349 |
|
Discov num |
CHR 39 |
|
Comp |
Aa,Ab |
|
Coord arcsec 2000 |
12 59 39.55 -03 48 43.0 |
|
| Date first |
1983 |
|
Date last |
2021 |
|
Obs |
30 |
|
| Pa first |
187 |
|
Pa last |
317.4 |
|
P.A. Now (θ) |
7.6° |
|
| Sep first |
0.1 |
|
Sep last |
0.081 |
|
Sep. Now (ρ) |
0.105" |
|
| Mag pri |
5.90 |
|
Mag sec |
8.30 |
|
delta mag (ΔM) |
2.4 |
|
Spectral class |
B9.5V (blue-white) |
|
| Pri motion ra |
-037 |
|
Sec motion ra |
|
|
| Pri motion dec |
+008 |
|
Sec motion dec |
|
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
12597-0349 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
139086 |
12 59 40 -03 48 43 |
CHR 39 Aa,Ab |
2021 |
30 |
317 |
0.1 |
5.90 |
8.30 |
2.40 |
Y |
<=== |
| Show |
44 Vir |
139086 |
12 59 40 -03 48 43 |
STF 1704 AB |
2017 |
28 |
54 |
20.6 |
5.80 |
10.30 |
4.50 |
|
|
Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Virgo |
|
SAO |
139086 |
|
HIP |
63414 |
|
Tycho2 |
4953-01223-1 |
|
| Gaia DR2 |
3679035317505913216 |
|
HD |
112846 |
|
HR |
4921 |
|
GC |
17631 |
|
| ADS |
8727 |
|
BD |
BD-03 3384 |
|
Flamsteed |
44 Virginis |
|
Flamsteed name |
44 Vir |
|
| FK5 |
1336 |
|
Distance |
77.94 |
|
Distance ly |
254.24 |
|
ORBITAL ELEMENTS
| Period (P) | 7.906y | |
Periastron (T) | 2011.562y | |
Semi-major axis (a) | 0.078a | |
| Eccentricity (e) | 0.363 | |
Inclination (i) | 19.3° | |
Longitude of periastron (ω) | 174.9° | |
| Node (Ω) | 21.6° | |
Notes | n | |
Reference | Doc2015g | |
| Equinox | 2000 | |
Last observation | 2014 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
23.2 |
0.106 |
| 2001 |
46.5 |
0.097 |
| 2002 |
78.1 |
0.078 |
| 2003 |
136.0 |
0.055 |
| 2004 |
229.9 |
0.051 |
| 2005 |
300.4 |
0.070 |
| 2006 |
338.2 |
0.091 |
| 2007 |
3.4 |
0.104 |
| 2008 |
25.3 |
0.106 |
| 2009 |
48.9 |
0.096 |
| 2010 |
82.0 |
0.076 |
| 2011 |
143.8 |
0.054 |
| 2012 |
238.4 |
0.052 |
| 2013 |
305.0 |
0.072 |
| 2014 |
340.9 |
0.093 |
| 2015 |
5.5 |
0.105 |
| 2016 |
27.3 |
0.105 |
| 2017 |
51.5 |
0.094 |
| 2018 |
86.2 |
0.073 |
| 2019 |
152.0 |
0.052 |
| 2020 |
246.5 |
0.054 |
| 2021 |
309.2 |
0.074 |
| 2022 |
343.5 |
0.094 |
| 2023 |
7.6 |
0.105 |
| 2024 |
29.4 |
0.105 |
| 2025 |
54.1 |
0.093 |
| 2026 |
90.6 |
0.071 |
| 2027 |
160.5 |
0.051 |
| 2028 |
254.3 |
0.055 |
| 2029 |
313.3 |
0.076 |
| 2030 |
346.0 |
0.096 |
|
|
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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