17217+3958 MCA 47 (V819 Her)
17h 21m 43.61s +39° 58' 29.3" P.A. 45.00 sep 0.0 mag 6.10,6.42 Sp F9V dist. 73.96 pc (241.26 l.y.)
Coord 2000 |
17217+3958 |
|
Discov num |
MCA 47 |
|
Comp |
|
|
Coord arcsec 2000 |
17 21 43.61 +39 58 29.3 |
|
Date first |
1980 |
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Date last |
2018 |
|
Obs |
102 |
|
Pa first |
278 |
|
Pa last |
45.2 |
|
P.A. Now (θ) |
179.6° |
|
Sep first |
0.0 |
|
Sep last |
0.044 |
|
Sep. Now (ρ) |
0.088" |
|
Mag pri |
6.10 |
|
Mag sec |
6.42 |
|
delta mag (ΔM) |
0.32 |
|
Spectral class |
F9V (yellow-white) |
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Pri motion ra |
+014 |
|
Sec motion ra |
|
|
Pri motion dec |
-054 |
|
Sec motion dec |
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Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Var name |
V819 Her |
|
Constellation |
Hercules |
|
SAO |
46664 |
|
HIP |
84949 |
|
Tycho2 |
3090-01896-1 |
|
Gaia DR2 |
1346932740806216960 |
|
HD |
157482 |
|
HR |
6469 |
|
GC |
23487 |
|
BD |
BD+40 3136 |
|
Distance |
73.96 |
|
Distance ly |
241.26 |
|
ORBITAL ELEMENTS
Period (P) | 2019.66d (5.53y) | ± 0.35 |
Periastron (T) | 52627.5m (2002.966y) | ± 1.3 |
Semi-major axis (a) | 74.41m | ± 0.67 |
Eccentricity (e) | 0.67974 | ± 0.00066 |
Inclination (i) | 56.4° | ± 0.13 |
Longitude of periastron (ω) | 222.5° | ± 0.22 |
Node (Ω) | 141.96° | ± 0.12 |
Notes | n | |
Reference | Mut2008 | |
Equinox | 2000 | |
Last observation | 2006 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000-01-01 |
166.2 |
0.106 |
2001-01-01 |
182.0 |
0.084 |
2002-01-01 |
217.7 |
0.048 |
2003-01-01 |
3.7 |
0.017 |
2004-01-01 |
145.0 |
0.087 |
2005-01-01 |
159.5 |
0.108 |
2006-01-01 |
172.7 |
0.098 |
2007-01-01 |
193.8 |
0.068 |
2008-01-01 |
262.1 |
0.034 |
2009-01-01 |
129.3 |
0.054 |
2010-01-01 |
152.6 |
0.102 |
2011-01-01 |
165.4 |
0.107 |
2012-01-01 |
180.8 |
0.086 |
2013-01-01 |
214.1 |
0.050 |
2014-01-01 |
340.2 |
0.022 |
2015-01-01 |
143.8 |
0.084 |
2016-01-01 |
158.7 |
0.108 |
2017-01-01 |
171.8 |
0.100 |
2018-01-01 |
192.0 |
0.070 |
2019-01-01 |
254.9 |
0.035 |
2020-01-01 |
125.9 |
0.048 |
2021-01-01 |
151.7 |
0.101 |
2022-01-01 |
164.6 |
0.107 |
2023-01-01 |
179.6 |
0.088 |
2024-01-01 |
210.7 |
0.052 |
2025-01-01 |
324.9 |
0.026 |
2026-01-01 |
142.5 |
0.082 |
2027-01-01 |
158.0 |
0.108 |
2028-01-01 |
171.0 |
0.101 |
2029-01-01 |
190.3 |
0.073 |
2030-01-01 |
248.1 |
0.036 |
|
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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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SUSPECTED ORBITAL ELEMENTS
SUSPECTED ORBITAL ELEMENTS SOLUTION #1
Identifier | 17217+3958 MCA 47 B |
coord_arcsec_2000 | 172143.61+395829.3 |
Period (P) | 53.511192h | ± 0.000046 |
Periastron (T) | 52627.17m (2002.966y) | ± 0.29 |
Semi-major axis (a) | 0.6655m | ± 0.0058 |
Eccentricity (e) | 0.0041 | ± 0.0033 |
Inclination (i) | 80.7° | ± 0.38 |
Longitude of periastron (ω) | 227° | ± 47 |
Node (Ω) | 131.1° | ± 4.1 |
Notes | n | |
Reference | Mut2008 | |
Equinox | 2000 | |
Last observation | 2006 | |
Grade | 9 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
68.1 |
|
2001 |
315.8 |
0.001 |
2002 |
303.1 |
0.001 |
2003 |
157.4 |
|
2004 |
131.9 |
0.001 |
2005 |
114.0 |
|
2006 |
321.9 |
|
2007 |
308.1 |
0.001 |
2008 |
247.5 |
|
2009 |
135.9 |
0.001 |
2010 |
123.5 |
0.001 |
2011 |
338.7 |
|
2012 |
311.9 |
0.001 |
2013 |
293.7 |
|
2014 |
142.1 |
|
2015 |
128.3 |
0.001 |
2016 |
73.5 |
|
2017 |
316.0 |
0.001 |
2018 |
303.4 |
0.001 |
2019 |
159.0 |
|
2020 |
132.1 |
0.001 |
2021 |
114.7 |
|
2022 |
322.4 |
|
2023 |
308.3 |
0.001 |
2024 |
252.9 |
|
2025 |
136.2 |
0.001 |
2026 |
123.8 |
0.001 |
2027 |
340.5 |
|
2028 |
312.1 |
0.001 |
2029 |
294.5 |
|
2030 |
142.6 |
|
|
|
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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SUSPECTED ORBITAL ELEMENTS
SUSPECTED ORBITAL ELEMENTS SOLUTION #2
Identifier | 17217+3958 MCA 47 B |
coord_arcsec_2000 | 172143.61+395829.3 |
Period (P) | 53.511202h | ± 0.000038 |
Periastron (T) | 52626.872m (2002.965y) | ± 0.054 |
Semi-major axis (a) | 0.6631m | ± 0.0221 |
Eccentricity (e) | 0 | |
Inclination (i) | 87.6° | ± 9.7 |
Longitude of periastron (ω) | 0° | |
Node (Ω) | 131.3° | ± 4 |
Notes | n | |
Reference | CIA2011c | |
Equinox | 2000 | |
Last observation | 2009 | |
Grade | 9 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
303.2 |
|
2001 |
133.2 |
0.001 |
2002 |
130.0 |
0.001 |
2003 |
333.2 |
|
2004 |
312.0 |
0.001 |
2005 |
308.4 |
|
2006 |
135.8 |
|
2007 |
131.1 |
0.001 |
2008 |
123.4 |
|
2009 |
313.3 |
0.001 |
2010 |
310.0 |
0.001 |
2011 |
154.9 |
|
2012 |
132.0 |
0.001 |
2013 |
128.4 |
|
2014 |
315.8 |
|
2015 |
311.1 |
0.001 |
2016 |
303.7 |
|
2017 |
133.3 |
0.001 |
2018 |
130.0 |
0.001 |
2019 |
336.9 |
|
2020 |
312.1 |
0.001 |
2021 |
308.5 |
|
2022 |
135.9 |
|
2023 |
131.1 |
0.001 |
2024 |
123.9 |
|
2025 |
313.3 |
0.001 |
2026 |
310.1 |
0.001 |
2027 |
159.3 |
|
2028 |
132.1 |
0.001 |
2029 |
128.5 |
|
2030 |
316.0 |
|
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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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