21137+6424 H 1 48 (HD 202582)

 
 
21h 13m 42.46s +64° 24' 15.1" P.A. 245.00 sep 0.8 mag 7.21,7.33 Sp G2IV+G2IV dist. 42.75 pc (139.45 l.y.)
 
 
Coord 2000 21137+6424 Discov num H 1  48 Comp Coord arcsec 2000 21 13 42.46 +64 24 15.1
Date first 1859 Date last 2022 Obs 164
Pa first 246 Pa last 245 P.A. Now (θ) 245.4°
Sep first 0.9 Sep last 0.799 Sep. Now (ρ) 0.81"
Mag pri 7.21 Mag sec 7.33 delta mag (ΔM) 0.12 Spectral class G2IV+G2IV (yellow/yellow)
Pri motion ra +018 Sec motion ra
Pri motion dec -096 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 202582 Constellation Cepheus SAO 19257 HIP 104788
Tycho2 4256-01036-1 HD 202582 HR 8133 GC 29718
ADS 14783 BD BD+63 1708 Distance 42.75 Distance ly 139.45
 
 
SUSPECTED ORBITAL ELEMENTS
 
 
Identifier21137+6424
coord_arcsec_2000211342.46+642415.1
Period (P)82.76y± 0.6 Periastron (T)2002.16y± 0.07 Semi-major axis (a)0.572a± 0.003
Eccentricity (e)0.733± 0.006 Inclination (i)82.5°± 0.3 Longitude of periastron (ω)28.2°± 0.5
Node (Ω)64.7°± 0.1 Notesn ReferenceMsn2021c
Equinox Last observation2019 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 57.9 0.158
2001 62.6 0.167
2002 67.7 0.143
2003 78.2 0.081
2004 166.0 0.026
2005 226.4 0.094
2006 234.2 0.170
2007 237.3 0.240
2008 239.0 0.304
2009 240.2 0.361
2010 241.0 0.414
2011 241.7 0.462
2012 242.2 0.506
2013 242.7 0.546
2014 243.1 0.583
2015 243.4 0.618
2016 243.7 0.649
2017 244.0 0.678
2018 244.3 0.705
2019 244.5 0.730
2020 244.8 0.753
2021 245.0 0.773
2022 245.2 0.792
2023 245.4 0.810
2024 245.6 0.825
2025 245.7 0.839
2026 245.9 0.852
2027 246.1 0.863
2028 246.3 0.873
2029 246.4 0.881
2030 246.6 0.889


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.


 
  


wds21137%2B6424e.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 21137+6424 H 1 48 (HD 202582) : NOTES
 
 
discov_num notes refcode
H 1 48 H I 48. Mlr1950b
Only elements P and T have been amended by Starikova (1977) from the Sta1977a
orbit of Baize (1950). Baz1950b
Malkov et al. (2012) derive dynamical, photometric, and spectroscopic
masses of 3.85 +/- 0.55, 2.04, and 2.52 Msun, respectively. Mlk2012
 
 
REFERENCES
 
 
refcode metd author reference
Baz1950b orb - Baize, P. 1950JO.....33..125B
Baz1950b J. Obs. 33, 125-133, 1950
Mlk2012 not - Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. 2012A&A...546A..69M
Mlk2012 A&A 546, A69, 2012
Mlr1950b Mc - Muller, P. 1950JO.....33..105M
Mlr1950b J. Obs. 33, 105, 1950
Sta1977a orb - Starikova, G.A. 1977ATsir.961....7S
Sta1977a Astron. Tsirk. #961, 7, 1977
 
 
DISCOVERER
 
 
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21137+6424 H 1 48 2007 143 244 0.3 7.21 7.33 G2IV+G2IV NOD 211342.46+642415.1
21137+6424 H 1 48 2008 146 237 0.3 7.21 7.33 G2IV G2IV NOD 211342.46+642415.1
21137+6424 H 1 48 2012 147 243 0.5 7.21 7.33 G2IV G2IV NOD 211342.46+642415.1
21137+6424 H 1 48 2014 149 244 0.6 7.21 7.33 G2IV+G2IV NO 211342.46+642415.1
21137+6424 H 1 48 2016 152 246 0.7 7.21 7.33 G2IV+G2IV NO 211342.46+642415.1
21137+6424 H 1 48 2018 153 244 0.7 7.21 7.33 G2IV+G2IV NO 211342.46+642415.1
21137+6424 H 1 48 2019 161 245 0.7 7.21 7.33 G2IV+G2IV NO 211342.46+642415.1
21137+6424 H 1 48 2020 163 246 0.8 7.21 7.33 G2IV+G2IV NO 211342.46+642415.1
21137+6424 H 1 48 2022 164 245 0.8 7.21 7.33 G2IV+G2IV NO 211342.46+642415.1

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WDS 21137+6424 H 1 48 (HD 202582) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21137+6424 H 1 48 (HD 202582) : MEASURES
 
 
No records found.

 
 
WDS 21137+6424 (HD 202582) : VIRTUAL EYEPIECE
 
 

virtual eyepiece
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WDS 21137+6424 (HD 202582) : ALADIN DSS IMAGE @
 
 
Error -22130
Not valid ID.
Error -22130
Not valid ID.
Error -27220
Not valid ID.