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Doubles in this session

Current system

20153+1535
CHE 242

Nearby doubles

3' : 20154+1538
CHE 243AB

6' : 20157+1537
CHE 247

6' : 20157+1534
BKO 547

8' : 20158+1536
BKO 551

8' : 20159+1535
CHE 252

10' : 20156+1527
BKO 546

10' : 20156+1526
HDS2887AB

11' : 20161+1537
CHE 255

13' : 20162+1535
CHE 256

13' : 20162+1534
CHE 257

14' : 20144+1533
CHE 229

14' : 20145+1541
CHE 231

14' : 20163+1538
CHE 261AB

17' : 20157+1520
CHE 248

17' : 20151+1552
BKO 543

17' : 20160+1521
CHE 253

21' : 20161+1552
BKO 557

21' : 20151+1555
CHE 241

21' : 20161+1553
CHE 254AB

22' : 20139+1529
CHE 220

23' : 20168+1543
CHE 266

24' : 20145+1555
CHE 230AB

25' : 20170+1538
CHE 269

25' : 20141+1553
BPM2068

25' : 20139+1549
CHE 219

25' : 20171+1536
CHE 272

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Multiple Systems

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Neglected List II

Herschel, J.F.W.

20153+1535 CHE 242

20^h 15^m 20.25^s +15° 35' 23.2" P.A. 358 sep 13.8 mag 10.08,14.30 Sp K0

Coord 2000	20153+1535		Discov num	CHE 242		Comp			Coord arcsec 2000	20 15 20.25 +15 35 23.2
Date first	1910		Date last	2015		Obs	9
Pa first	2		Pa last	358		P.A. Now (θ)	358°
Sep first	14.4		Sep last	13.8		Sep. Now (ρ)	13.8"
Mag pri	10.08		Mag sec	14.30		delta mag (ΔM)	4.22		Spectral class	K0 (yellow-orange)
Pri motion ra	+009		Sec motion ra	-026
Pri motion dec	-006		Sec motion dec	-023
Notes

rPM=1.121

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Precise pa	358		Precise sep	13.816		Constellation	Delphinus		Tycho2	1618-00218-1
Gaia DR2	43160239744		HD	355244

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20153+1535	CHE 242		1998	2	358	13.9	10.08	14.30		D	201520.25+153523.2
20153+1535	CHE 242		2008	3	6	13.9	10.08	14.30		D	201520.25+153523.2
20153+1535	CHE 242		2015	5	358	13.8	10.08	14.30	K0		201520.25+153523.2

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