16001+1112 SLW 1155 (Rho CrB)
16h 00m 06.15s +11° 11' 40.3" P.A. 267.00 sep 37.8 mag 14.96,18.37 Sp K7.7+M3.1 dist. 17.24 pc (56.24 l.y.)
Coord 2000 |
16001+1112 |
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Discov num |
SLW1155 |
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Comp |
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Coord arcsec 2000 |
16 00 06.15 +11 11 40.3 |
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Date first |
2000 |
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Date last |
2016 |
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Obs |
9 |
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Pa first |
267 |
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Pa last |
266.6 |
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P.A. Now (θ) |
266.6° |
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Sep first |
37.7 |
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Sep last |
37.752 |
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Sep. Now (ρ) |
37.752" |
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Mag pri |
14.96 |
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Mag sec |
18.37 |
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delta mag (ΔM) |
3.41 |
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Spectral class |
K7.7+M3.1 (yellow-orange/red) |
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Pri motion ra |
+013 |
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Sec motion ra |
+014 |
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Pri motion dec |
+039 |
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Sec motion dec |
+036 |
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Notes |
V
R
(Proper motion indicates physical, Red magnitudes) |
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rPM=0.077 (< 0.3, Physical double)
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
Rho CrB |
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Constellation |
Serpens |
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SAO |
65024 |
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HIP |
78459 |
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Tycho2 |
2576-02228-1 |
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Gaia DR2 |
4457512497980700288 |
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HD |
143761 |
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HR |
5968 |
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GC |
21527 |
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GL |
Gl 606.2 |
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BD |
BD+33 2663 |
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Bayer |
Rho Coronae Borealis |
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Bayer name |
Rho CrB |
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Distance |
17.24 |
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Distance ly |
56.24 |
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Bayer greek |
ρ CrB |
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Bayer or Flamsteed indentifiers not always match the correct constellation because of procession and proper motion of the star. (CrB vs Ser)
ORBITAL ELEMENTS
Period (P) | 0.10924y | |
Periastron (T) | 1997.5724y | |
Semi-major axis (a) | 1.66m | ± 0.35 |
Eccentricity (e) | 0.13 | |
Inclination (i) | 0.48° | |
Longitude of periastron (ω) | 30° | |
Node (Ω) | 30.5° | ± 12.3 |
Notes | n | |
Reference | Gat2001a | |
Equinox | 2000 | |
Last observation | | |
Grade | 9 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
155.6 |
0.002 |
2001 |
205.4 |
0.002 |
2002 |
249.2 |
0.002 |
2003 |
294.4 |
0.002 |
2004 |
349.0 |
0.002 |
2005 |
57.4 |
0.001 |
2006 |
126.7 |
0.002 |
2007 |
182.4 |
0.002 |
2008 |
228.1 |
0.002 |
2009 |
271.7 |
0.002 |
2010 |
320.7 |
0.002 |
2011 |
22.6 |
0.001 |
2012 |
94.2 |
0.001 |
2013 |
157.0 |
0.002 |
2014 |
206.6 |
0.002 |
2015 |
250.3 |
0.002 |
2016 |
295.7 |
0.002 |
2017 |
350.6 |
0.002 |
2018 |
59.3 |
0.001 |
2019 |
128.3 |
0.002 |
2020 |
183.7 |
0.002 |
2021 |
229.3 |
0.002 |
2022 |
272.9 |
0.002 |
2023 |
322.2 |
0.002 |
2024 |
24.4 |
0.001 |
2025 |
96.1 |
0.001 |
2026 |
158.5 |
0.002 |
2027 |
207.8 |
0.002 |
2028 |
251.4 |
0.002 |
2029 |
296.9 |
0.002 |
2030 |
352.2 |
0.002 |
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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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