08592+4803 HJ 2477 A,BC (Talitha)
08h 59m 12.45s +48° 02' 30.6" P.A. 90.00 sep 2.4 mag 3.13,9.20 Sp A7IV dist. 14.51 pc (47.33 l.y.)
| Coord 2000 |
08592+4803 |
|
Discov num |
HJ 2477 |
|
Comp |
A,BC |
|
Coord arcsec 2000 |
08 59 12.45 +48 02 30.6 |
|
| Date first |
1831 |
|
Date last |
2017 |
|
Obs |
81 |
|
| Pa first |
349 |
|
Pa last |
89.7 |
|
P.A. Now (θ) |
89.7° |
|
| Sep first |
13.5 |
|
Sep last |
2.418 |
|
Sep. Now (ρ) |
2.418" |
|
| Mag pri |
3.13 |
|
Mag sec |
9.20 |
|
delta mag (ΔM) |
6.07 |
|
Spectral class |
A7IV (white) |
|
| Pri motion ra |
-441 |
|
Sec motion ra |
|
|
| Pri motion dec |
-215 |
|
Sec motion dec |
|
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
08592+4803 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
Talitha |
42630 |
08 59 12 +48 02 31 |
HJ 2477 A,BC |
2017 |
81 |
90 |
2.4 |
3.13 |
9.20 |
6.07 |
Y |
<=== |
| Show |
|
|
08 59 13 +48 02 29 |
HU 628 BC |
2017 |
69 |
206 |
0.9 |
9.90 |
10.10 |
0.20 |
Y |
|
Triple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Common name |
Talitha |
|
Var name |
NSV4329 UMa |
|
Constellation |
Ursa Major |
|
SAO |
42630 |
|
| HIP |
44127 |
|
Tycho2 |
3420-02149-1 |
|
HD |
76644 |
|
HR |
3569 |
|
| GC |
12407 |
|
ADS |
7114 |
|
GL |
Gl 331A |
|
BD |
BD+48 1707 |
|
| Bayer |
Iota Ursae Majoris |
|
Bayer name |
Iot UMa |
|
Flamsteed |
9 Ursae Majoris |
|
Flamsteed name |
9 UMa |
|
| FK5 |
335 |
|
Distance |
14.51 |
|
Distance ly |
47.33 |
|
Bayer greek |
ι UMa |
|
| Meaning |
Bulgarian proposal; named after Tengri, the god early Bulgars worshiped. |
|
ORBITAL ELEMENTS
| Period (P) | 486.0288y | ± 221.5399 |
Periastron (T) | 2101.3123y | ± 54.3109 |
Semi-major axis (a) | 8.31175a | ± 2.30214 |
| Eccentricity (e) | 0.46809 | ± 0.24843 |
Inclination (i) | 75.659° | ± 3.295 |
Longitude of periastron (ω) | 33.303° | ± 36.805 |
| Node (Ω) | 165.245° | ± 5.439 |
Notes | n | |
Reference | Izm2019 | |
| Equinox | | |
Last observation | 2012 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
58.8 |
2.338 |
| 2001 |
60.8 |
2.305 |
| 2002 |
63.0 |
2.274 |
| 2003 |
65.2 |
2.247 |
| 2004 |
67.4 |
2.222 |
| 2005 |
69.7 |
2.201 |
| 2006 |
72.0 |
2.183 |
| 2007 |
74.4 |
2.168 |
| 2008 |
76.8 |
2.157 |
| 2009 |
79.2 |
2.149 |
| 2010 |
81.7 |
2.145 |
| 2011 |
84.1 |
2.144 |
| 2012 |
86.5 |
2.147 |
| 2013 |
88.9 |
2.153 |
| 2014 |
91.3 |
2.163 |
| 2015 |
93.7 |
2.177 |
| 2016 |
96.1 |
2.193 |
| 2017 |
98.4 |
2.213 |
| 2018 |
100.6 |
2.236 |
| 2019 |
102.9 |
2.262 |
| 2020 |
105.0 |
2.291 |
| 2021 |
107.1 |
2.323 |
| 2022 |
109.2 |
2.357 |
| 2023 |
111.2 |
2.394 |
| 2024 |
113.1 |
2.433 |
| 2025 |
114.9 |
2.475 |
| 2026 |
116.7 |
2.518 |
| 2027 |
118.5 |
2.563 |
| 2028 |
120.2 |
2.610 |
| 2029 |
121.8 |
2.659 |
| 2030 |
123.3 |
2.709 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|
