00424+0410 STT 18 AB (HD 3972)
00h 42m 23.21s +04° 10' 00.0" P.A. 211.00 sep 2.1 mag 7.86,9.71 Sp F8V dist. 59.99 pc (195.69 l.y.)
| Coord 2000 |
00424+0410 |
|
Discov num |
STT 18 |
|
Comp |
AB |
|
Coord arcsec 2000 |
00 42 23.21 +04 10 00.0 |
|
| Date first |
1843 |
|
Date last |
2017 |
|
Obs |
177 |
|
| Pa first |
91 |
|
Pa last |
211.4 |
|
P.A. Now (θ) |
211.4° |
|
| Sep first |
1.0 |
|
Sep last |
2.065 |
|
Sep. Now (ρ) |
2.065" |
|
| Mag pri |
7.86 |
|
Mag sec |
9.71 |
|
delta mag (ΔM) |
1.85 |
|
Spectral class |
F8V (yellow-white) |
|
| Pri motion ra |
+027 |
|
Sec motion ra |
+027 |
|
| Pri motion dec |
-038 |
|
Sec motion dec |
-038 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
00424+0410 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 3972 |
109392 |
00 42 23 +04 10 00 |
STT 18 AB |
2017 |
177 |
211 |
2.1 |
7.86 |
9.71 |
1.85 |
Y |
<=== |
| Show |
|
109392 |
00 42 23 +04 10 00 |
A 3107 AC |
2015 |
13 |
275 |
46.9 |
7.86 |
13.45 |
5.59 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 3972 |
|
Constellation |
Pisces |
|
SAO |
109392 |
|
HIP |
3326 |
|
| Tycho2 |
0014-00641-1 |
|
Gaia DR2 |
2551241944269355776 |
|
HD |
3972 |
|
ADS |
588 |
|
| BD |
BD+03 93 |
|
Distance |
59.99 |
|
Distance ly |
195.69 |
|
ORBITAL ELEMENTS
| Period (P) | 386.51y | |
Periastron (T) | 1828.13y | |
Semi-major axis (a) | 3.296a | |
| Eccentricity (e) | 0.834 | |
Inclination (i) | 75.3° | |
Longitude of periastron (ω) | 284.3° | |
| Node (Ω) | 76.5° | |
Notes | n | |
Reference | Hrt2001b | |
| Equinox | 2000 | |
Last observation | 1999 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
204.0 |
1.882 |
| 2001 |
204.4 |
1.893 |
| 2002 |
204.8 |
1.903 |
| 2003 |
205.2 |
1.914 |
| 2004 |
205.6 |
1.924 |
| 2005 |
205.9 |
1.935 |
| 2006 |
206.3 |
1.945 |
| 2007 |
206.7 |
1.956 |
| 2008 |
207.1 |
1.967 |
| 2009 |
207.4 |
1.977 |
| 2010 |
207.8 |
1.988 |
| 2011 |
208.1 |
1.998 |
| 2012 |
208.5 |
2.009 |
| 2013 |
208.8 |
2.019 |
| 2014 |
209.2 |
2.030 |
| 2015 |
209.5 |
2.040 |
| 2016 |
209.9 |
2.051 |
| 2017 |
210.2 |
2.061 |
| 2018 |
210.5 |
2.072 |
| 2019 |
210.9 |
2.082 |
| 2020 |
211.2 |
2.092 |
| 2021 |
211.5 |
2.103 |
| 2022 |
211.8 |
2.113 |
| 2023 |
212.1 |
2.124 |
| 2024 |
212.5 |
2.134 |
| 2025 |
212.8 |
2.144 |
| 2026 |
213.1 |
2.154 |
| 2027 |
213.4 |
2.165 |
| 2028 |
213.7 |
2.175 |
| 2029 |
214.0 |
2.185 |
| 2030 |
214.3 |
2.195 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|
