stampa
Login

Filter only those doubles you can observe? Yes, you can!
Register here


Search



Actions
Advanced Search
Go to Simbad
New report
New measure
Login


Computed Lists
Populars
Latest Populars
Doubles in session


Current system
16137+4638
A 1642
HD 146327


Nearby doubles
19' : 16121+4647
BEM9009

21' : 16156+4646
CBL 63

44' : 16098+4624
BEM9008

48' : 16091+4634
BEM9007

53' : 16136+4546
COU1767

55' : 16088+4619
CVR1659

58' : 16139+4736
ES 1088AB

61' : 16112+4734
STF2025

66' : 16197+4619
BU 1198

69' : 16141+4748
LDS4653

72' : 16072+4613
HDS2274

78' : 16105+4748
STT 307

81' : 16138+4518
KPP1645

83' : 16114+4521
LDS1433

89' : 16067+4730
SKF 259

93' : 16089+4521
STF2015AB

96' : 16104+4510
RAO 600

96' : 16206+4535
HDS2309

97' : 16080+4523
BU 355AB

100' : 16233+4647
CVR1664

100' : 16042+4620
LEP 148

102' : 16185+4510
ES 1253

103' : 16056+4739
AG 202

103' : 16159+4458
UC 3145

107' : 16189+4506
CVR1663

110' : 16127+4827
KPP3987



Selections
Full WDS
Binocular doubles
Binary Systems
Triple Systems
Quadruple Systems
Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

16137+4638 A 1642 (HD 146327)

 
 
16h 13m 43.62s +46° 38' 23.1" P.A. 177.00 sep 0.8 mag 8.87,9.39 Sp G0 dist. 81.77 pc (266.73 l.y.)
 
 
Coord 2000 16137+4638 Discov num A  1642 Comp Coord arcsec 2000 16 13 43.62 +46 38 23.1
Date first 1907 Date last 2023 Obs 60
Pa first 359 Pa last 176.6 P.A. Now (θ) 181°
Sep first 0.6 Sep last 0.83 Sep. Now (ρ) 0.824"
Mag pri 8.87 Mag sec 9.39 delta mag (ΔM) 0.52 Spectral class G0 (yellow)
Pri motion ra -099 Sec motion ra -099
Pri motion dec +040 Sec motion dec +040
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 146327 Constellation Hercules SAO 45976 HIP 79526
Tycho2 3491-00279-1 Gaia DR2 1386878170041456384 HD 146327 ADS 9975
BD BD+47 2317 Distance 81.77 Distance ly 266.73
 
 
ORBITAL ELEMENTS
 
 
Period (P)188.61y Periastron (T)1892.3y Semi-major axis (a)0.719a
Eccentricity (e)0.271 Inclination (i)99.3° Longitude of periastron (ω)120.4°
Node (Ω)176.1° Notesn ReferenceHrt2001b
Equinox2000 Last observation1997 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 185.0 0.654
2001 184.7 0.665
2002 184.3 0.676
2003 184.0 0.686
2004 183.7 0.695
2005 183.4 0.705
2006 183.1 0.714
2007 182.8 0.723
2008 182.5 0.731
2009 182.2 0.738
2010 181.9 0.746
2011 181.7 0.753
2012 181.4 0.759
2013 181.1 0.765
2014 180.9 0.771
2015 180.6 0.776
2016 180.3 0.780
2017 180.1 0.785
2018 179.8 0.788
2019 179.6 0.791
2020 179.4 0.794
2021 179.1 0.796
2022 178.9 0.797
2023 178.6 0.798
2024 178.4 0.798
2025 178.1 0.798
2026 177.9 0.797
2027 177.7 0.796
2028 177.4 0.794
2029 177.2 0.791
2030 176.9 0.788
2031 176.7 0.784
2032 176.4 0.779
2033 176.2 0.774
2034 175.9 0.768
2035 175.7 0.761
2036 175.4 0.754
2037 175.1 0.746
2038 174.8 0.737
2039 174.6 0.728
2040 174.3 0.717
2041 174.0 0.707
2042 173.6 0.695
2043 173.3 0.682
2044 173.0 0.669
2045 172.6 0.655
2046 172.3 0.641
2047 171.9 0.625
2048 171.5 0.609
2049 171.1 0.592
2050 170.6 0.574


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds16137%2B4638a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic