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20197+1522
A 1673

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

20197+1522 A 1673

20^h 19^m 40.14^s +15° 21' 31.1" P.A. 55.00 sep 1.0 mag 9.89,10.82 Sp F8

Coord 2000	20197+1522		Discov num	A 1673		Comp			Coord arcsec 2000	20 19 40.14 +15 21 31.1
Date first	1907		Date last	2007		Obs	12
Pa first	49		Pa last	55		P.A. Now (θ)	55°
Sep first	0.8		Sep last	1.0		Sep. Now (ρ)	1"
Mag pri	9.89		Mag sec	10.82		delta mag (ΔM)	0.93		Spectral class	F8 (yellow-white)
Pri motion ra	+005		Sec motion ra	+005
Pri motion dec	+013		Sec motion dec	+013
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Precise pa	55		Precise sep	1.019		Constellation	Delphinus		SAO	105969
Tycho2	1631-00982-1		Gaia DR2	1805367443926132480		HD	355509

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20197+1522	A 1673		2000	11	55	0.8	9.89	10.82	F8		201940.14+152131.1
20197+1522	A 1673		2007	12	55	1.0	9.89	10.82	F8		201940.14+152131.1

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