00187+1559 STF 25AB

00^h 18^m 42.80^s +15° 59' 26.5" P.A. 196.00 sep 1.0 mag 9.31,9.55 Sp F5 dist. 167.5 pc (546.38 l.y.)

Coord 2000	00187+1559	Discov num	STF 25	Comp	AB	Coord arcsec 2000	00 18 42.80 +15 59 26.5
Date first	1831	Date last	2016	Obs	62
Pa first	193	Pa last	196	P.A. Now (θ)	196°
Sep first	1.7	Sep last	1.0	Sep. Now (ρ)	1"
Mag pri	9.31	Mag sec	9.55	delta mag (ΔM)	0.24	Spectral class	F5 (yellow-white)
Pri motion ra	+031	Sec motion ra	+031
Pri motion dec	-030	Sec motion dec	-030
Notes

Nature of this double is uncertain.

00187+1559 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		91839	00 18 43 +15 59 26	STF 25 AB	2016	62	196	1.0	9.31	9.55	0.24		<===
Show		91839	00 18 43 +15 59 26	STF 25 AB,C	2000	6	202	171.5	8.97	13.17	4.20

Triple system
4 visible stars in this system

OTHER CATALOGS AND DESIGNATIONS

Precise pa	195.7	Precise sep	1.049	Constellation	Hydra	SAO	91839
HIP	1503	Tycho2	1179-00068-1	Gaia DR2	2792641032108486016	HD	1450
BD	BD+15 43	Distance	167.5	Distance ly	546.38

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
00187+1559	STF 25	AB	2005	58	196	1.1	9.31	9.55	F5	D	001842.80+155926.5
00187+1559	STF 25	AB	2013	59	192	1.0	9.31	9.55	F5		001842.80+155926.5
00187+1559	STF 25	AB	2016	59	196	1.0	9.31	9.55	F5		001842.80+155926.5

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

WDS 00187+1559 STF 25AB : NOTES

No records found.

DISCOVERER

WDS 00187+1559 STF 25AB : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 00187+1559 STF 25AB : MEASURES

No records found.

WDS 00187+1559 STF 25AB : Virtual Eyepiece

Radius:

WDS 00187+1559 STF 25AB : Aladin DSS image @ 00^h 18^m 42.80^s +15° 59' 26.5"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9

WDS 00187+1559 STF 25AB : NEIGHBORHOODS

Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

Show	name	coord_2000	discov#	comp	sep	pa	dist(')
Show		00187+1559	STF 25	AB	1	196	1
Show		00187+1559	STF 25	AB,C	171.50	202	1
Show		00178+1620	TOK 646		20.10	232	25
Show		00178+1535	SLW 15		37.10	171	28
Show		00192+1626	SHN 47		0.50		28
Show		00166+1554	J 1802		4.80	127	31
Show		00174+1631	STF 20		11.90	233	37
Show		00163+1537	J 1321		2.60	104	42
Show		00183+1646	BPM 8		107.30	356	47
Show		00159+1634	LDS3146		151	358	54
Show		00153+1630	BPM 7		116.50	158	58
Show		00140+1539	ITF 22		20.20	292	71
Show		00145+1638	YSC 78		0.70	45	73
Show		00137+1537	BPM 5		97	115	76
Show		00144+1643	BPM 6		95.30	13	77
Show		00159+1706	GRV 18		16.10	0	78
Show		00226+1656	KPP 53		3.40	301	80
Show		00233+1645	HEI 16		0.30	19	81
Show		00219+1706	BPM 10		80.60	153	81
Show		00139+1518	LDS1074		4.90	237	83
Show		00239+1647	FMR 30		173.90	57	89
Show	Algenib	00132+1511	BUP 3	AB	164.10	286	93
Show		00132+1511	BUP 3	BC	20.10	195	95
Show		00242+1505	GWP 44		30.50	341	97
Show		00256+1536	LDS9089		3.40	141	101
Show		00200+1419	CHE 5	AB	6.20	206	102
Show		00200+1419	CHE 5	AC	45.90	100	102
Show		00246+1659	YSC 80		0.90	209	104
Show		00260+1624	ITF 105		3.30	301	108
Show		00196+1748	WIS 6		523.30	331	110
Show		00264+1549	ITF 196		7.80	234	112
Show		00115+1648	LDS3137		158.10	352	114
Show		00204+1757	OSO 4		8.10	191	121
Show		00122+1720	J 182		4.40	37	125
Show		00153+1753	LDS3145		25.20	273	125
Show		00104+1525	HJ 1002		27.30	24	125
Show		00275+1602	STT 10	BD	152.80	156	126
Show		00275+1602	STT 10	AB	114.20	240	127
Show		00275+1602	STT 10	AC	274.30	156	127
Show		00276+1616	GWP 52		19.50	73	129
Show		00109+1705	GWP 24		13.70	98	131
Show		00129+1416	GRV 14		36.60	177	133
Show		00151+1358	LDS1075		8.70	170	134
Show		00270+1705	BFR 3		30.30	138	136
Show		00140+1401	BRT1165		3.70	141	137
Show		00113+1435	LDS1072		4.80	270	137
Show		00274+1502	YSC 169		0.60	87	139
Show		00105+1716	ALP 1		17.80	314	141
Show		00136+1356	LDS1073	AB	21.50	252	143
Show		00136+1356	LDS1073	AC	25.20	6	143
Show		00277+1659	SHN 52		0.10		143

00187+1559 : COMPONENTS

	A	B
B	pa=195.1° sep=1.05"
C	pa=201.3° sep=170.56"	pa=201.4° sep=169.52"

00187+1559 A

Coord arcsec 2000	001842.80+155926.5	Mag	9.31	Spectr	F5	PmRA	31.0
PmDE	-30.0	SAO	91839	HIP	1503	Tycho2	1179-00068-1
Gaia DR2	2792641032108486016	HD	1450	BD	BD+15 43

Tycho2

TYCHO2	1179-00068-1	Pflag	P	RAmdeg	4.67834817	DEmdeg	15.99049319
PmRA	31.1	PmDE	-30.2	E RAmdeg	14	E DEmdeg	19
E pmRA	1.6	E pmDE	1.6	EpRAm	1990.62	EpDEm
Num	6	Q RAmdeg	1.2	Q DEmdeg	0.7	Q pmRA	1.2
Q pmDE	0.7	BTmag	9.880	E BTmag	0.030	VTmag	9.310
E VTmag	0.025	Prox	12	TYC	T	HYP
CCDM	A	RAdeg	4.67831417	DEdeg	15.99070694	EpRA 1990	1.77
EpDE 1990	1.47	E RAdeg	14.0	E DEdeg	18.5	Posflg	D
Corr	0.0

SAO

SAO	91839	DelFlag		RA1950		PmRA1950	0.002
DE1950		PmDE1950	-0.031	Vmag	8.8	SpType	F5
CatNum	379	Dm number		HD	1450	M HD	0
GC	379	RA1950rad	0.0703577	DE1950rad	0.2742468	PmRA2000	0.002
PmDE2000	-0.036

Hipparcos

Catalog	H	HIP	1503	Proxy	H	RAhms	00 18 42.80
DEdms	+15 59 26.5	Vmags		VarFlag		RAdeg	4.67831
DEdeg	15.9907	AstroRef	A	Plx	6.33	MultiFlag
Source		Qual	A	M HIP	AB	Theta	195
Rho	1.169	HD	1450	BD	BD+15 43	CD
CP		VIred	0.62	SpType	F5...	R SpType

Hipparcos 2

HIP	1503	Sn	15	So	3	Nc	2
RArad	0.0816519802	DErad	0.279090494	Plx	5.97	PmRA	27.75
PmDE	-28.23	E RArad	1.66	E DErad	0.91	E Plx	1.52
E pmRA	2.13	E pmDE	0.97	Hpmag	8.7751	E Hpmag	0.0018
SHp	0.019	VA	0	BV	0.55	E BV	0.015
VI	0.62

00187+1559 B

Coord arcsec 2000	001842.78+155925.5		Mag	9.55		PmRA	31.0		PmDE	-30.0
SAO	91839		HIP	1503		HD	1450

00187+1559 C

Coord arcsec 2000	001838.50+155647.6		Mag	13.17		PmRA	17.0		PmDE	0.0
SAO	91839		HIP	1503		HD	1450