09572+4554 STF1394

 
 
09h 57m 14.57s +45 54' 10.1" P.A. 249.90 sep 4.5 mag 8.89,9.75 Sp G0 dist. 58.11 pc (189.55 l.y.)
 
 
Coord 2000
09572+4554
Discov num
STF1394
Comp
Coord arcsec 2000
09 57 14.57 +45 54 10.1
Date first
1828
Date last
2019
Obs
63
Pa first
237
Pa last
250
P.A. Now (θ)
249.9°
Sep first
3.8
Sep last
4.5
Sep. Now (ρ)
4.51"
Mag pri
8.89
Mag sec
9.75
delta mag (ΔM)
0.86
Spectral class
G0 (yellow)
Pri motion ra
-025
Sec motion ra
-025
Pri motion dec
-083
Sec motion dec
-085
Notes
O (Orbital solution)
rPM=0.023 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
250.3
Precise sep
4.484
Constellation
Hydra
SAO
43111
HIP
48804
Tycho2
3433-00329-1
Gaia DR2
820692216460834944
HD
86057
ADS
7588
BD
BD+46 1565
Distance
58.11
Distance ly
189.55
last precise pa
250.3
last precise sep
4.484
 
 
ORBITAL ELEMENTS
 
 
Period (P)2848y± 640 Periastron (T)1163y± 180 Semi-major axis (a)3.53a± 0.52
Eccentricity (e)0.46± 0.16 Inclination (i)45°± 9 Longitude of periastron (ω)21°± 24
Node (Ω)78°± 8 Note Grade5(1=Definitive, 9=Indet.)
Equinox Last observation
label rho theta
2000 4.449 248.9
2001 4.452 248.9
2002 4.454 249.0
2003 4.457 249.0
2004 4.460 249.1
2005 4.463 249.1
2006 4.466 249.2
2007 4.468 249.2
2008 4.471 249.3
2009 4.474 249.3
2010 4.477 249.4
2011 4.479 249.4
2012 4.482 249.5
2013 4.485 249.5
2014 4.487 249.6
2015 4.490 249.6
2016 4.493 249.7
2017 4.496 249.7
2018 4.498 249.7
2019 4.501 249.8
2020 4.504 249.8
2021 4.506 249.9
2022 4.509 249.9
2023 4.512 250.0
2024 4.514 250.0
2025 4.517 250.1
2026 4.519 250.1
2027 4.522 250.2
2028 4.525 250.2
2029 4.527 250.3
2030 4.530 250.3


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



 
 


wds09572%2B4554a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
09572+4554 STF1394 2008 40 250 4.4 8.89 9.75 G0 D 095714.57+455410.1
09572+4554 STF1394 2010 44 250 4.4 8.89 9.75 G0 D 095714.57+455410.1
09572+4554 STF1394 2013 46 249 4.6 8.89 9.75 G0 D 095714.57+455410.1
09572+4554 STF1394 2014 51 250 4.5 8.89 9.75 G0 095714.57+455410.1
09572+4554 STF1394 2017 52 251 4.5 8.89 9.75 G0 095714.57+455410.1
09572+4554 STF1394 2019 55 250 4.6 8.89 9.75 G0 095714.57+455410.1

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