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Doubles in this session

Current system

20128+1520
CHE 198

Nearby doubles

5' : 20127+1516
CHE 195

7' : 20127+1514
BPM2058

9' : 20123+1525
BPM2055

9' : 20123+1524
CHE 191AB

10' : 20133+1516
CHE 210

12' : 20123+1529
CHE 190

12' : 20128+1508
CHE 199

12' : 20122+1512
CHE 188AB

12' : 20133+1529
BKO 533

13' : 20127+1508
CHE 196

13' : 20133+1530
CHE 209

14' : 20130+1533
CHE 205

15' : 20126+1506
CHE 194

16' : 20128+1504
CHE 200

17' : 20122+1534
CHE 187AB

17' : 20129+1503
CHE 203

18' : 20134+1536
BKO 534

19' : 20132+1503
CHE 208

19' : 20139+1529
CHE 220

20' : 20123+1501
CHE 192

20' : 20115+1524
BPM2048

21' : 20136+1537
CHE 215AB

22' : 20127+1458
CHE 197

23' : 20132+1541
CHE 207AB

24' : 20142+1508
BKO 538

25' : 20140+1503
CHE 222

Selections

Binocular doubles

Quadruple Systems

Multiple Systems

Neglected List I

Neglected List II

Herschel, J.F.W.

20128+1520 CHE 198

20^h 12^m 47.14^s +15° 19' 47.4" P.A. 228.00 sep 17.2 mag 8.90,10.35 Sp K0III dist. 423.73 pc (1382.21 l.y.)

Coord 2000	20128+1520		Discov num	CHE 198		Comp			Coord arcsec 2000	20 12 47.14 +15 19 47.4
Date first	1910		Date last	2015		Obs	12
Pa first	229		Pa last	228		P.A. Now (θ)	228°
Sep first	17.4		Sep last	17.2		Sep. Now (ρ)	17.2"
Mag pri	8.90		Mag sec	10.35		delta mag (ΔM)	1.45		Spectral class	K0III (yellow-orange)
Pri motion ra	+003		Sec motion ra	+005
Pri motion dec	-010		Sec motion dec	-015
Notes

rPM=0.341

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Precise pa	227.9		Precise sep	17.226		Constellation	Aquila		SAO	105840
HIP	99602		Tycho2	1618-01594-1		Gaia DR2	31439215488		HD	192126
BD	BD+14 4223		Distance	423.73		Distance ly	1382.21

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20128+1520	CHE 198		2002	4	228	16.7	8.90	10.35		D	201247.14+151947.4
20128+1520	CHE 198		2008	5	226	16.9	8.90	10.35		D	201247.14+151947.4
20128+1520	CHE 198		2010	8	228	16.8	8.90	10.35	K0III		201247.14+151947.4
20128+1520	CHE 198		2015	8	228	17.2	8.90	10.35	K0III		201247.14+151947.4

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