00210+6740 HJ 1018 (HD 1624)
00h 20m 57.23s +67° 40' 03.0" P.A. 87.00 sep 1.5 mag 8.57,8.89 Sp G5 dist. 31.74 pc (103.54 l.y.)
| Coord 2000 |
00210+6740 |
|
Discov num |
HJ 1018 |
|
Comp |
|
|
Coord arcsec 2000 |
00 20 57.23 +67 40 03.0 |
|
| Date first |
1828 |
|
Date last |
2020 |
|
Obs |
95 |
|
| Pa first |
84 |
|
Pa last |
87 |
|
P.A. Now (θ) |
87° |
|
| Sep first |
1.5 |
|
Sep last |
1.529 |
|
Sep. Now (ρ) |
1.529" |
|
| Mag pri |
8.57 |
|
Mag sec |
8.89 |
|
delta mag (ΔM) |
0.32 |
|
Spectral class |
G5 (yellow) |
|
| Pri motion ra |
+026 |
|
Sec motion ra |
+023 |
|
| Pri motion dec |
+074 |
|
Sec motion dec |
+074 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
rPM=0.038 (< 0.3, Physical double)
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 1624 |
|
Constellation |
Cepheus |
|
SAO |
11124 |
|
HIP |
1674 |
|
| Tycho2 |
4294-00406-1 |
|
Gaia DR2 |
528767648745379200 |
|
HD |
1624 |
|
GC |
416 |
|
| ADS |
283 |
|
BD |
BD+66 19 |
|
Distance |
31.74 |
|
Distance ly |
103.54 |
|
ORBITAL ELEMENTS
| Period (P) | 154.2328y | ± 3.6474 |
Periastron (T) | 1942.7553y | ± 1.6671 |
Semi-major axis (a) | 0.97822a | ± 0.05546 |
| Eccentricity (e) | 0.91379 | ± 0.02389 |
Inclination (i) | 88.271° | ± 1.571 |
Longitude of periastron (ω) | 210.113° | ± 10.154 |
| Node (Ω) | 86.735° | ± 1.129 |
Notes | n | |
Reference | Izm2019 | |
| Equinox | | |
Last observation | 2015 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
87.5 |
1.626 |
| 2001 |
87.5 |
1.629 |
| 2002 |
87.6 |
1.633 |
| 2003 |
87.6 |
1.635 |
| 2004 |
87.6 |
1.638 |
| 2005 |
87.6 |
1.639 |
| 2006 |
87.6 |
1.641 |
| 2007 |
87.6 |
1.642 |
| 2008 |
87.6 |
1.643 |
| 2009 |
87.6 |
1.643 |
| 2010 |
87.6 |
1.643 |
| 2011 |
87.6 |
1.642 |
| 2012 |
87.7 |
1.641 |
| 2013 |
87.7 |
1.640 |
| 2014 |
87.7 |
1.638 |
| 2015 |
87.7 |
1.636 |
| 2016 |
87.7 |
1.633 |
| 2017 |
87.7 |
1.630 |
| 2018 |
87.7 |
1.627 |
| 2019 |
87.7 |
1.623 |
| 2020 |
87.7 |
1.619 |
| 2021 |
87.7 |
1.615 |
| 2022 |
87.8 |
1.610 |
| 2023 |
87.8 |
1.605 |
| 2024 |
87.8 |
1.599 |
| 2025 |
87.8 |
1.593 |
| 2026 |
87.8 |
1.587 |
| 2027 |
87.8 |
1.580 |
| 2028 |
87.8 |
1.573 |
| 2029 |
87.8 |
1.565 |
| 2030 |
87.8 |
1.557 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|
