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00274+3054
HDS 62

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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

00274+3054 HDS 62

00^h 27^m 23.42^s +30° 53' 36.1" P.A. 75.00 sep 0.3 mag 8.55,10.46 Sp K1III... dist. 460.83 pc (1503.23 l.y.)

Coord 2000	00274+3054		Discov num	HDS 62		Comp			Coord arcsec 2000	00 27 23.42 +30 53 36.1
Date first	1991		Date last	2011		Obs	4
Pa first	67		Pa last	75		P.A. Now (θ)	75°
Sep first	0.3		Sep last	0.3		Sep. Now (ρ)	0.3"
Mag pri	8.55		Mag sec	10.46		delta mag (ΔM)	1.91		Spectral class	K1III... (yellow-orange)
Pri motion ra	-002		Sec motion ra
Pri motion dec	-010		Sec motion dec
Notes	N O (See Notes, Orbital solution)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Precise pa	74.7		Precise sep	0.3		Constellation	Andromeda		SAO	53907
HIP	2170		Tycho2	2262-00040-1		Gaia DR2	2859205289960371840		HD	2343
BD	BD+30 60		Distance	460.83		Distance ly	1503.23		last precise pa	74.7
last precise sep	0.3

ORBITAL ELEMENTS

Period (P)	936d (2.56y)		Periastron (T)	42531.9d (1975.324y)		Semi-major axis (a)	4.1m	± 1
Eccentricity (e)	0		Inclination (i)	48.9°	± 11.6	Longitude of periastron (ω)	0°
Node (Ω)	293.2°	± 9.9	Note			Grade	9	(1=Definitive, 9=Indet.)
Equinox	2000		Last observation

label	rho	theta
2000	0.003	147.8
2001	0.004	297.8
2002	0.004	90.4
2003	0.003	229.3
2004	0.003	352.1
2005	0.004	133.1
2006	0.004	286.1
2007	0.003	74.9
2008	0.003	203.6
2009	0.003	332.0
2010	0.004	120.6
2011	0.004	273.7
2012	0.003	55.0
2013	0.003	177.8
2014	0.004	316.4
2015	0.004	109.0
2016	0.003	259.0
2017	0.003	30.1
2018	0.003	156.4
2019	0.004	303.5
2020	0.004	96.9
2021	0.003	240.3
2022	0.003	3.8
2023	0.004	139.9
2024	0.004	291.8
2025	0.004	82.9
2026	0.003	216.5
2027	0.003	341.1
2028	0.004	126.5
2029	0.004	279.9
2030	0.003	65.4

grafico orbita

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

wds00274%2B3054f.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
00274+3054	HDS 62		1991	1	67	0.3	8.55	10.46	K1III...		002723.42+305336.1
00274+3054	HDS 62		2007	2	72	0.3	8.55	10.46	K1III...		002723.42+305336.1
00274+3054	HDS 62		2011	3	75	0.3	8.55	10.46	K1III...	NO	002723.42+305336.1

If you need more information about this double, apply for a data request form to the WDS.