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10216+4609
STF1425

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

10216+4609 STF1425

10^h 21^m 34.14^s +46° 09' 07.6" P.A. 358.00 sep 4.8 mag 9.89,10.74 Sp F5 dist. 144.51 pc (471.39 l.y.)

Coord 2000	10216+4609		Discov num	STF1425		Comp			Coord arcsec 2000	10 21 34.14 +46 09 07.6
Date first	1829		Date last	2017		Obs	35
Pa first	2		Pa last	358		P.A. Now (θ)	358°
Sep first	4.8		Sep last	4.8		Sep. Now (ρ)	4.8"
Mag pri	9.89		Mag sec	10.74		delta mag (ΔM)	0.85		Spectral class	F5 (yellow-white)
Pri motion ra	+003		Sec motion ra	+001
Pri motion dec	-009		Sec motion dec	-011
Notes

rPM=0.256 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Precise pa	358		Precise sep	4.828		Constellation	Ursa Major		SAO	43302
HIP	50733		Tycho2	3435-00356-1		Gaia DR2	809451565493527296		HD	89617
BD	BD+46 1620		Distance	144.51		Distance ly	471.39

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
10216+4609	STF1425		2000	23	358	4.7	9.89	10.74	F5	D	102134.14+460907.6
10216+4609	STF1425		2010	24	355	4.9	9.89	10.74	F5	D	102134.14+460907.6
10216+4609	STF1425		2011	25	358	4.8	9.89	10.74	F5	D	102134.14+460907.6
10216+4609	STF1425		2012	27	358	4.8	9.89	10.74	F5		102134.14+460907.6
10216+4609	STF1425		2015	30	358	4.8	9.89	10.74	F5		102134.14+460907.6
10216+4609	STF1425		2017	32	358	4.8	9.89	10.74	F5		102134.14+460907.6

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