15447+1716 CHR 49 AB (Tau8 Ser)

15^h 44^m 42.15^s +17° 15' 51.2" P.A. 98.00 sep 0.1 mag 6.10, Sp A0V dist. 113.64 pc (370.69 l.y.)

Coord 2000	15447+1716	Discov num	CHR 49	Comp	AB	Coord arcsec 2000	15 44 42.15 +17 15 51.2
Date first	1985	Date last	1985	Obs	1
Pa first	98	Pa last	98.3	P.A. Now (θ)	98.3°
Sep first	0.1	Sep last	0.131	Sep. Now (ρ)	0.131"
Mag pri	6.10	Mag sec		delta mag (ΔM)		Spectral class	A0V (white)
Pri motion ra	-027	Sec motion ra
Pri motion dec	-003	Sec motion dec
Notes	N X W (See Notes, Dubious double, )

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Name	Tau8 Ser	Constellation	Serpens	SAO	101712	HIP	77111
Tycho2	1495-00371-1	HD	140729	HR	5858	GC	21164
BD	BD+17 2906	Bayer	Tau 8 Serpentis	Bayer name	Tau8 Ser	Flamsteed	26 Serpentis
Flamsteed name	26 Ser	Distance	113.64	Distance ly	370.69	Bayer greek	τ⁸ Ser

WDS 15447+1716 CHR 49 AB (Tau8 Ser) : NOTES

discov_num	notes	refcode
CHR 49	26 Ser = tau 8 Ser. A spectroscopic binary.
	This system, first announced by McAlister and recalled in a later	McA1984b
	McAlister paper after repeated attempts at confirmation, has been	McA1993
	restored. While perhaps still spurious, the subsequent confirmation or
	suspected duplicity (by another technique) makes the discovery
	measurement somewhat more probable.

REFERENCES

refcode	metd	author	reference
McA1984b	Sc j	McAlister, H.A. & Hartkopf, W.I.	...................
McA1984b		Catalog of Interferometric Measurements of Binary Stars, CHARA Contrib. #1, 1984
McA1984b		(previously unpublished KPNO 2.1m and 3.8m data)
McA1993	Sc j	McAlister, H.A., Mason, B.D., Hartkopf, W.I., & Shara, M.M.	1993AJ....106.1639M
McA1993	+orb	AJ 106, 1639, 1993

DISCOVERER

idgroup	discov	author
1	CHR	Center for High Ang. Res. Astronomy (speckle interferometry systems)

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
15447+1716	CHR 49	AB	1985	1	98	0.1	6.10		A0V	NXW	154442.15+171551.2

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

WDS 15447+1716 CHR 49 AB (Tau8 Ser) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 15447+1716 CHR 49 AB (Tau8 Ser) : MEASURES

No records found.

WDS 15447+1716 (Tau8 Ser) : VIRTUAL EYEPIECE

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

WDS 15447+1716 (Tau8 Ser) : ALADIN DSS IMAGE @ 15^h 44^m 42.15^s +17° 15' 51.2"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 15447+1716 CHR 49 AB (Tau8 Ser) : 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	pa	sep	dist(')
Show		15447+1716	CHR 49	AB	98	0.1	1
Show		15439+1700	BPM 638		237	56.9	20
Show		15459+1700	WFC 168		303	7.1	25
Show		15427+1653	SLW1127		140	13.2	37
Show		15456+1640	COU2511		19	0.1	38
Show		15445+1756	NSN 670		176	0.8	41
Show		15440+1810	SHN 33		357	0.3	56
Show		15463+1614	HEI 238		142	1.2	67
Show		15488+1751	LDS 979		258	29.2	69
Show		15399+1646	COU2510		35	0.2	75
Show		15419+1828	DRS 17	AB	86	2.4	83
Show		15419+1828	TOK 302	AC	274	249.2	83
Show		15432+1846	LDS4587		217	8.5	93
Show		15455+1543	SLW1133		224	10.4	94
Show		15377+1719	SLW1118		63	47.5	100
Show		15424+1852	GWP2546		232	899.3	102
Show		15501+1822	CVR 172		139	54.5	102
Show		15474+1851	COU 192	AB	189	1.2	103
Show		15474+1851	GII 223	Aa,Ab	164	0.1	103
Show		15405+1840	A 2076		187	0.8	104
Show		15456+1859	SLW1135		288	11.6	105
Show		15519+1732	BPM 641		121	86.0	105
Show		15374+1731	BPM 633		248	118.5	106
Show		15428+1859	GWP2547		235	83.7	107
Show		15372+1740	SLW1114		200	10.5	110
Show	Chow	15462+1525	STF1970	AB	263	29.9	113
Show	Chow	15462+1525	STF1970	AC	211	201.7	113
Show	Chow	15462+1525	SHY 281	AD	255	999.9	113
Show		15468+1905	A 2077		223	0.6	114
Show		15525+1738	CVR1652		307	4.5	115
Show		15444+1518	ROE 75		327	6.2	118
Show		15529+1719	SLW1145		156	10.9	119
Show		15358+1720	BRT2421		52	4.0	129
Show		15361+1639	LDS4570		115	17.6	129
Show		15368+1820	LDS4571		102	34.6	129
Show		15538+1726	CVR 805		84	19.2	130
Show		15384+1542	GWP2539		169	155.1	131
Show		15435+1505	BPM 637		236	102.9	132
Show		15426+1507	SLW1126		95	72.8	133
Show		15425+1506	CVR1643		252	3.9	135
Show		15365+1607	UC 3033	AB	62	35.5	137
Show		15365+1607	DSG 18	Aa,Ab	320	1.0	137
Show		15354+1743	LDS 977		351	17.6	137
Show		15542+1659	A 2080		104	0.4	137
Show		15450+1933	CBL 495		164	15.2	138
Show		15482+1925	COU 193		282	0.5	139
Show		15511+1531	GWP2558		239	16.0	140
Show		15506+1909	SLW1142		236	26.4	142
Show		15358+1611	CVR 792		5	10.1	143
Show		15499+1512	BPM 639		281	70.6	145
Show		15509+1911	A 2078		165	1.1	145

WDS 15447+1716 : COMPONENTS

	A
B	pa=98.7° sep=0.13"

15447+1716 A

Name	Tau8 Ser	Coord arcsec 2000	154442.15+171551.2	Mag	6.1	Spectral class	A0V (white)
PmRA	-27.00	PmDE	-3.0	SAO	101712	HIP	77111
Tycho2	1495-00371-1	HD	140729	HR	5858	GC	21164
BD	BD+17 2906	Bayer	Tau 8 Serpentis	Bayer name	Tau8 Ser	Flamsteed	26 Serpentis
Flamsteed name	26 Ser

Tycho2

Tycho2	1495-00371-1	Pflag		RAmdeg	236.17555101	DEmdeg	17.26422754
PmRA	-29.5	PmDE	6.9	E RAmdeg	4	E DEmdeg	4
E pmRA	0.8	E pmDE	0.8	EpRAm	1991.23	EpDEm	1991.25
Num	17	Q RAmdeg	0.8	Q DEmdeg	1.0	Q pmRA	0.9
Q pmDE	1.0	BTmag	6.146	E BTmag	0.015	VTmag	6.136
E VTmag	0.010	Prox	996	TYC	T	HIP	77111
CCDM		RAdeg	236.17562278	DEdeg	17.26421167	EpRA 1990	1.60
EpDE 1990	1.64	E RAdeg	3.8	E DEdeg	3.9	Posflg
Corr	0.2

SAO

SAO	101712	DelFlag		RA1950		PmRA1950	-0.0019
DE1950		PmDE1950	-0.003	Vmag	5.9	SpType	A0
Double code		Source	70	CatNum	21164	DM	BD+17 2906
DMcomp		BDsup		HD	140729	M HD	0
GC	21164	RA1950rad	4.11212164	DE1950rad	0.30403967	PmRA2000	-0.0019
PmDE2000	0

Hipparcos

Catalog	H	HIP	77111	Proxy		RAhms	15 44 42.15
DEdms	+17 15 51.2	Vmag	6.15	VarFlag		R Vmag	G
RAdeg	236.176	DEdeg	17.2642	AstroRef		Plx	10.16
CCDM		N CCDM		Nsys		Ncomp	1
MultFlag		Source		Qual		M HIP
Theta		Rho		HD	140729	BD	BD+17 2906
CD		CP		Dm number	+17 2906	VIred	0.02
SpType	A0V	R SpType		Coord arcsec 2000	154442.15+171551.2

Hipparcos 2

HIP	77111	Sn	5	So	0	Nc	1
RArad	4.1220422586	DErad	0.301317314	Plx	8.8	PmRA	-29.59
PmDE	5.02	E RArad	0.32	E DErad	0.38	E Plx	0.49
E pmRA	0.41	E pmDE	0.59	Hpmag	6.1538	E Hpmag	0.0006
SHp	0.006	VA	0	BV	0.002	E BV	0.002
VI	0.02

15447+1716 B

Coord arcsec 2000

154442.16+171551.2

Calc delta mag

6.1

Calc coord

yes