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00180+2057
LDS 864

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

00180+2057 LDS 864

00^h 17^m 59.17^s +20° 57' 24.5" P.A. 232.00 sep 9.3 mag 10.40,12.77 Sp M2V

Coord 2000	00180+2057		Discov num	LDS 864		Comp			Coord arcsec 2000	00 17 59.17 +20 57 24.5
Date first	1894		Date last	2017		Obs	14
Pa first	232		Pa last	232		P.A. Now (θ)	232°
Sep first	9.3		Sep last	9.3		Sep. Now (ρ)	9.3"
Mag pri	10.40		Mag sec	12.77		delta mag (ΔM)	2.37		Spectral class	M2V (red)
Pri motion ra	-166		Sec motion ra	-272
Pri motion dec	-303		Sec motion dec	-384
Notes	N (See Notes)

rPM=0.283 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Precise pa

232.4

Precise sep

9.33

Constellation

Pisces

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
00180+2057	LDS 864		2000	7	235	10.0	10.40	12.77		D	001759.17+205724.5
00180+2057	LDS 864		2013	9	233	9.7	10.40	12.77	M2V	N	001759.17+205724.5
00180+2057	LDS 864		2015	10	234	9.4	10.40	12.77	M2V	N	001759.17+205724.5
00180+2057	LDS 864		2016	11	233	9.5	10.40	12.77	M2V	N	001759.17+205724.5

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