19064-3704 HJ 5084 (Gam CrA)
19h 06m 25.14s -37° 03' 48.5" P.A. 316.00 sep 1.6 mag 5.01,5.05 Sp F8V+F8V dist. 17.3 pc (56.43 l.y.)
| Coord 2000 |
19064-3704 |
|
Discov num |
HJ 5084 |
|
Comp |
|
|
Coord arcsec 2000 |
19 06 25.14 -37 03 48.5 |
|
| Date first |
1834 |
|
Date last |
2023 |
|
Obs |
300 |
|
| Pa first |
217 |
|
Pa last |
315.8 |
|
P.A. Now (θ) |
308.6° (calc) |
|
| Sep first |
1.2 |
|
Sep last |
1.56 |
|
Sep. Now (ρ) |
1.64" (calc) |
|
| Mag pri |
5.01 |
|
Mag sec |
5.05 |
|
delta mag (ΔM) |
0.04 |
|
Spectral class |
F8V+F8V (yellow-white/yellow-white) |
|
| Pri motion ra |
+088 |
|
Sec motion ra |
+088 |
|
| Pri motion dec |
-284 |
|
Sec motion dec |
-284 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
Gam CrA |
|
Constellation |
Corona Austrina |
|
SAO |
210928 |
|
HIP |
93825 |
|
| Tycho2 |
7422-01737-1 |
|
Gaia DR2 |
6719152945032456832 |
|
HD |
177474 |
|
HR |
7226 |
|
| GC |
26263 |
|
CD |
CD-3713048 |
|
CP |
CP-37 8464 |
|
Bayer |
Gamma |
|
| Bayer name |
Gam |
|
Distance |
17.3 |
|
Distance ly |
56.43 |
|
Bayer greek |
γ |
|
Bayer or Flamsteed indentifiers not always match the correct constellation because of procession and proper motion of the star. ( vs CrA)
ORBITAL ELEMENTS
| Period (P) | 122.2053y | ± 0.2386 |
Periastron (T) | 1877.8043y | ± 0.0811 |
Semi-major axis (a) | 1.88053a | ± 0.00423 |
| Eccentricity (e) | 0.31572 | ± 0.00125 |
Inclination (i) | 147.865° | ± 0.455 |
Longitude of periastron (ω) | 345.873° | ± 0.94 |
| Node (Ω) | 48.725° | ± 0.705 |
Notes | n | |
Reference | Izm2019 | |
| Equinox | | |
Last observation | 2014 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
60.8 |
1.276 |
| 2001 |
55.7 |
1.285 |
| 2002 |
50.7 |
1.293 |
| 2003 |
45.7 |
1.301 |
| 2004 |
40.8 |
1.308 |
| 2005 |
35.9 |
1.314 |
| 2006 |
31.1 |
1.321 |
| 2007 |
26.3 |
1.326 |
| 2008 |
21.6 |
1.332 |
| 2009 |
16.9 |
1.338 |
| 2010 |
12.2 |
1.344 |
| 2011 |
7.6 |
1.351 |
| 2012 |
3.0 |
1.360 |
| 2013 |
358.5 |
1.369 |
| 2014 |
354.1 |
1.380 |
| 2015 |
349.8 |
1.393 |
| 2016 |
345.5 |
1.407 |
| 2017 |
341.3 |
1.423 |
| 2018 |
337.2 |
1.441 |
| 2019 |
333.3 |
1.461 |
| 2020 |
329.4 |
1.482 |
| 2021 |
325.6 |
1.505 |
| 2022 |
322.0 |
1.529 |
| 2023 |
318.5 |
1.555 |
| 2024 |
315.1 |
1.582 |
| 2025 |
311.8 |
1.611 |
| 2026 |
308.6 |
1.640 |
| 2027 |
305.6 |
1.670 |
| 2028 |
302.6 |
1.701 |
| 2029 |
299.8 |
1.732 |
| 2030 |
297.0 |
1.763 |
| 2031 |
294.4 |
1.795 |
| 2032 |
291.8 |
1.827 |
| 2033 |
289.4 |
1.859 |
| 2034 |
287.0 |
1.891 |
| 2035 |
284.7 |
1.923 |
| 2036 |
282.5 |
1.954 |
| 2037 |
280.3 |
1.985 |
| 2038 |
278.2 |
2.015 |
| 2039 |
276.2 |
2.045 |
| 2040 |
274.2 |
2.074 |
| 2041 |
272.3 |
2.103 |
| 2042 |
270.4 |
2.131 |
| 2043 |
268.6 |
2.158 |
| 2044 |
266.8 |
2.184 |
| 2045 |
265.1 |
2.209 |
| 2046 |
263.4 |
2.233 |
| 2047 |
261.7 |
2.256 |
| 2048 |
260.1 |
2.278 |
| 2049 |
258.5 |
2.299 |
| 2050 |
256.9 |
2.318 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
Measures: green=micrometric, blue=interferometric, purple=photographic
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