02291+6724 STF 262 AB (Iot Cas)
02h 29m 03.96s +67° 24' 08.7" P.A. 231.00 sep 3.0 mag 4.66,6.92 Sp A4V+F5V dist. 40.73 pc (132.86 l.y.)
| Coord 2000 |
02291+6724 |
|
Discov num |
STF 262 |
|
Comp |
AB |
|
Coord arcsec 2000 |
02 29 03.96 +67 24 08.7 |
|
| Date first |
1782 |
|
Date last |
2022 |
|
Obs |
270 |
|
| Pa first |
290 |
|
Pa last |
230.8 |
|
P.A. Now (θ) |
230.8° |
|
| Sep first |
1.5 |
|
Sep last |
2.98 |
|
Sep. Now (ρ) |
2.98" |
|
| Mag pri |
4.66 |
|
Mag sec |
6.92 |
|
delta mag (ΔM) |
2.26 |
|
Spectral class |
A4V+F5V (white/yellow-white) |
|
| Pri motion ra |
-018 |
|
Sec motion ra |
-018 |
|
| Pri motion dec |
+012 |
|
Sec motion dec |
+012 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
02291+6724 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
12298 |
02 29 04 +67 24 09 |
CHR 6 Aa,Ab |
2010 |
21 |
42 |
0.6 |
4.66 |
7.88 |
3.22 |
Y |
|
| Show |
Iot Cas |
12298 |
02 29 04 +67 24 09 |
STF 262 AB |
2022 |
270 |
231 |
3.0 |
4.66 |
6.92 |
2.26 |
Y |
<=== |
| Show |
|
12298 |
02 29 04 +67 24 09 |
STF 262 AC |
2022 |
232 |
117 |
6.9 |
4.63 |
9.05 |
4.42 |
|
|
| Show |
|
12298 |
02 29 04 +67 24 09 |
STF 262 AD |
2016 |
10 |
60 |
210.9 |
4.63 |
8.48 |
3.85 |
|
|
| Show |
|
12298 |
02 29 04 +67 24 07 |
STF 262 BC |
2015 |
154 |
99 |
8.5 |
6.92 |
9.05 |
2.13 |
|
|
| Show |
|
|
02 29 04 +67 24 09 |
CTU 2 Ca,Cb |
2018 |
5 |
101 |
0.2 |
4.50 |
6.10 |
1.60 |
|
|
| Show |
|
|
02 29 04 +67 24 09 |
STF 262 CD |
2015 |
8 |
58 |
207.1 |
9.05 |
8.48 |
0.57 |
|
|
Sextuple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
Iot Cas |
|
Constellation |
Cassiopeia |
|
SAO |
12298 |
|
HIP |
11569 |
|
| Tycho2 |
4058-01504-1 |
|
Gaia DR2 |
517650349234855424 |
|
HD |
15089 |
|
HR |
707 |
|
| GC |
2952 |
|
ADS |
1860 |
|
BD |
BD+66 213 |
|
Bayer |
Iota Cassiopeiae |
|
| Bayer name |
Iot Cas |
|
Distance |
40.73 |
|
Distance ly |
132.86 |
|
Bayer greek |
ι Cas |
|
ORBITAL ELEMENTS
| Period (P) | 2400y | |
Periastron (T) | 940y | ± 47 |
Semi-major axis (a) | 6.5a | |
| Eccentricity (e) | 0.4 | |
Inclination (i) | 102.9° | ± 0.3 |
Longitude of periastron (ω) | 113.3° | ± 3.4 |
| Node (Ω) | 188° | ± 0.9 |
Notes | n | |
Reference | Tok2021b | |
| Equinox | | |
Last observation | | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
231.1 |
2.863 |
| 2001 |
230.9 |
2.872 |
| 2002 |
230.8 |
2.880 |
| 2003 |
230.6 |
2.888 |
| 2004 |
230.5 |
2.896 |
| 2005 |
230.3 |
2.904 |
| 2006 |
230.2 |
2.912 |
| 2007 |
230.0 |
2.920 |
| 2008 |
229.9 |
2.928 |
| 2009 |
229.7 |
2.936 |
| 2010 |
229.6 |
2.944 |
| 2011 |
229.4 |
2.952 |
| 2012 |
229.3 |
2.960 |
| 2013 |
229.1 |
2.969 |
| 2014 |
229.0 |
2.977 |
| 2015 |
228.8 |
2.985 |
| 2016 |
228.7 |
2.993 |
| 2017 |
228.5 |
3.001 |
| 2018 |
228.4 |
3.010 |
| 2019 |
228.3 |
3.018 |
| 2020 |
228.1 |
3.026 |
| 2021 |
228.0 |
3.034 |
| 2022 |
227.8 |
3.043 |
| 2023 |
227.7 |
3.051 |
| 2024 |
227.6 |
3.059 |
| 2025 |
227.4 |
3.067 |
| 2026 |
227.3 |
3.076 |
| 2027 |
227.1 |
3.084 |
| 2028 |
227.0 |
3.092 |
| 2029 |
226.9 |
3.101 |
| 2030 |
226.7 |
3.109 |
|
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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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