09551-2632 I 843 AB (HD 85994)
09h 55m 06.30s -26° 32' 19.4" P.A. 117.00 sep 0.8 mag 8.98,9.68 Sp K1V
Coord 2000 |
09551-2632 |
|
Discov num |
I 843 |
|
Comp |
AB |
|
Coord arcsec 2000 |
09 55 06.30 -26 32 19.4 |
|
Date first |
1910 |
|
Date last |
2019 |
|
Obs |
23 |
|
Pa first |
200 |
|
Pa last |
117.1 |
|
P.A. Now (θ) |
117.1° |
|
Sep first |
1.0 |
|
Sep last |
0.83 |
|
Sep. Now (ρ) |
0.83" |
|
Mag pri |
8.98 |
|
Mag sec |
9.68 |
|
delta mag (ΔM) |
0.7 |
|
Spectral class |
K1V (yellow-orange) |
|
Pri motion ra |
-149 |
|
Sec motion ra |
-149 |
|
Pri motion dec |
-042 |
|
Sec motion dec |
-042 |
|
Notes |
O
(Orbital solution) |
|
This double is physical.
09551-2632 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
HD 85994 |
|
09 55 06 -26 32 19 |
I 843 AB |
2019 |
23 |
117 |
0.8 |
8.98 |
9.68 |
0.70 |
Y |
<=== |
Show |
|
|
09 55 06 -26 32 19 |
I 843 AC |
2015 |
10 |
221 |
6.2 |
8.98 |
12.70 |
3.72 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 85994 |
|
Constellation |
Hydra |
|
HIP |
48645 |
|
Tycho2 |
6612-01122-1 |
|
Gaia DR2 |
5658870380304596096 |
|
HD |
85994 |
|
ADS |
7580 |
|
CD |
CD-25 7596 |
|
ORBITAL ELEMENTS
Period (P) | 188.36y | |
Periastron (T) | 1875.3y | |
Semi-major axis (a) | 1.013a | |
Eccentricity (e) | 0.591 | |
Inclination (i) | 130.7° | |
Longitude of periastron (ω) | 232.5° | |
Node (Ω) | 204.7° | |
Notes | | |
Reference | Msn2017a | |
Equinox | 2000 | |
Last observation | 2011 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
141.0 |
1.030 |
2001 |
140.1 |
1.019 |
2002 |
139.0 |
1.009 |
2003 |
138.0 |
0.999 |
2004 |
137.0 |
0.988 |
2005 |
135.9 |
0.978 |
2006 |
134.8 |
0.967 |
2007 |
133.7 |
0.957 |
2008 |
132.6 |
0.946 |
2009 |
131.4 |
0.936 |
2010 |
130.2 |
0.925 |
2011 |
129.0 |
0.914 |
2012 |
127.7 |
0.904 |
2013 |
126.5 |
0.893 |
2014 |
125.2 |
0.883 |
2015 |
123.8 |
0.873 |
2016 |
122.4 |
0.862 |
2017 |
121.0 |
0.852 |
2018 |
119.6 |
0.842 |
2019 |
118.1 |
0.832 |
2020 |
116.6 |
0.822 |
2021 |
115.1 |
0.812 |
2022 |
113.5 |
0.802 |
2023 |
111.9 |
0.792 |
2024 |
110.2 |
0.783 |
2025 |
108.5 |
0.773 |
2026 |
106.7 |
0.764 |
2027 |
105.0 |
0.755 |
2028 |
103.1 |
0.746 |
2029 |
101.2 |
0.737 |
2030 |
99.3 |
0.729 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|