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15031+0202
STF1903

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

15031+0202 STF1903

15^h 03^m 05.42^s +02° 02' 26.2" P.A. 328.00 sep 47.0 mag 10.46,10.69

Coord 2000	15031+0202		Discov num	STF1903		Comp			Coord arcsec 2000	15 03 05.42 +02 02 26.2
Date first	1903		Date last	2015		Obs	13
Pa first	322		Pa last	328		P.A. Now (θ)	328°
Sep first	41.8		Sep last	47.0		Sep. Now (ρ)	47"
Mag pri	10.46		Mag sec	10.69		delta mag (ΔM)	0.23		Spectral class
Pri motion ra	-043		Sec motion ra	-037
Pri motion dec	-055		Sec motion dec	+008
Notes

rPM=0.906

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Precise pa	327.9		Precise sep	47.023		Constellation	Hydra		Tycho2	0338-00240-1
Gaia DR2	1153779402850228992

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
15031+0202	STF1903		2000	5	327	46.2	10.46	10.69			150305.42+020226.2
15031+0202	STF1903		2012	6	328	46.8	10.46	10.69			150305.42+020226.2
15031+0202	STF1903		2013	8	328	47.0	10.46	10.69			150305.42+020226.2
15031+0202	STF1903		2015	10	328	47.0	10.46	10.69			150305.42+020226.2

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