09123+1500 FIN 347 Aa,Ab
09h 12m 17.55s +14° 59' 45.7" P.A. 168.00 sep 0.1 mag 7.20,7.20 Sp G8V dist. 20.36 pc (66.41 l.y.)
| Coord 2000 |
09123+1500 |
|
Discov num |
FIN 347 |
|
Comp |
Aa,Ab |
|
Coord arcsec 2000 |
09 12 17.55 +14 59 45.7 |
|
| Date first |
1959 |
|
Date last |
2021 |
|
Obs |
127 |
|
| Pa first |
156 |
|
Pa last |
167.8 |
|
P.A. Now (θ) |
167.8° |
|
| Sep first |
0.1 |
|
Sep last |
0.114 |
|
Sep. Now (ρ) |
0.114" |
|
| Mag pri |
7.20 |
|
Mag sec |
7.20 |
|
delta mag (ΔM) |
0 |
|
Spectral class |
G8V (yellow) |
|
| Pri motion ra |
-524 |
|
Sec motion ra |
|
|
| Pri motion dec |
+246 |
|
Sec motion dec |
|
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
09123+1500 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
98427 |
09 12 18 +14 59 46 |
FIN 347 Aa,Ab |
2021 |
127 |
168 |
0.1 |
7.20 |
7.20 |
0.00 |
Y |
<=== |
| Show |
|
98427 |
09 12 18 +14 59 46 |
BUP 125 AB |
2022 |
7 |
117 |
90.5 |
6.56 |
14.17 |
7.61 |
|
|
| Show |
Pi1 Cnc |
98427 |
09 12 18 +14 59 46 |
STT 569 AC |
2015 |
16 |
214 |
204.7 |
6.56 |
10.40 |
3.84 |
|
|
| Show |
|
98427 |
09 12 18 +14 59 46 |
WIL 1 AE |
2022 |
2 |
262 |
44.7 |
6.56 |
17.00 |
10.44 |
|
|
| Show |
|
98427 |
09 12 18 +14 59 46 |
HLA 10 AF |
2018 |
3 |
290 |
4.6 |
4.70 |
12.60 |
7.90 |
|
|
| Show |
|
|
09 12 15 +14 59 40 |
BUG 16 Ea,Eb |
2004 |
1 |
291 |
0.5 |
14.70 |
14.90 |
0.20 |
|
|
Septuple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cancer |
|
SAO |
98427 |
|
HIP |
45170 |
|
Tycho2 |
0825-01543-1 |
|
| HD |
79096 |
|
HR |
3650 |
|
GC |
12693 |
|
GL |
Gl 337A |
|
| BD |
BD+15 2003 |
|
Bayer |
Pi 1 Cancri |
|
Bayer name |
Pi1 Cnc |
|
Flamsteed |
81 Cancri |
|
| Flamsteed name |
81 Cnc |
|
Distance |
20.36 |
|
Distance ly |
66.41 |
|
Bayer greek |
π1 Cnc |
|
ORBITAL ELEMENTS
| Period (P) | 2.7055y | ± 0.0002 |
Periastron (T) | 1979.9819y | ± 0.0026 |
Semi-major axis (a) | 0.113a | ± 0 |
| Eccentricity (e) | 0.44 | ± 0.001 |
Inclination (i) | 123.8° | ± 0.3 |
Longitude of periastron (ω) | 352.2° | ± 0.6 |
| Node (Ω) | 318° | ± 0.3 |
Notes | n | |
Reference | Msn2021a | |
| Equinox | | |
Last observation | 2021 | |
Grade | 1 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
151.8 |
0.149 |
| 2001 |
111.8 |
0.107 |
| 2002 |
222.6 |
0.055 |
| 2003 |
141.7 |
0.162 |
| 2004 |
68.3 |
0.055 |
| 2005 |
174.6 |
0.098 |
| 2006 |
131.9 |
0.154 |
| 2007 |
330.5 |
0.061 |
| 2008 |
156.6 |
0.138 |
| 2009 |
119.2 |
0.125 |
| 2010 |
258.6 |
0.052 |
| 2011 |
145.5 |
0.159 |
| 2012 |
93.0 |
0.074 |
| 2013 |
187.2 |
0.080 |
| 2014 |
135.9 |
0.160 |
| 2015 |
3.3 |
0.049 |
| 2016 |
162.4 |
0.124 |
| 2017 |
124.9 |
0.139 |
| 2018 |
291.5 |
0.059 |
| 2019 |
149.5 |
0.153 |
| 2020 |
106.7 |
0.096 |
| 2021 |
207.4 |
0.062 |
| 2022 |
139.7 |
0.162 |
| 2023 |
48.0 |
0.048 |
| 2024 |
169.7 |
0.108 |
| 2025 |
129.6 |
0.150 |
| 2026 |
317.1 |
0.064 |
| 2027 |
154.0 |
0.144 |
| 2028 |
115.6 |
0.116 |
| 2029 |
239.0 |
0.052 |
| 2030 |
143.5 |
0.161 |
|
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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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