08181+3117 SEI 492

08^h 18^m 03.56^s +31° 16' 40.9" P.A. 342.00 sep 33.2 mag 10.12,12.79 Sp F5 dist. 196.85 pc (642.12 l.y.)

Coord 2000	08181+3117	Discov num	SEI 492	Comp		Coord arcsec 2000	08 18 03.56 +31 16 40.9
Date first	1894	Date last	2015	Obs	9
Pa first	337	Pa last	342.4	P.A. Now (θ)	342.4°
Sep first	29.1	Sep last	33.204	Sep. Now (ρ)	33.204"
Mag pri	10.12	Mag sec	12.79	delta mag (ΔM)	2.67	Spectral class	F5 (yellow-white)
Pri motion ra	-014	Sec motion ra	-002
Pri motion dec	-042	Sec motion dec	-001
Notes

rPM=0.965

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation	Cancer		HIP	40665		Tycho2	2470-00118-1		Gaia DR2	900894236723156224
GL	NN 3491		BD	BD+31 1778		Distance	196.85		Distance ly	642.12

WDS 08181+3117 SEI 492 : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
Sei1908	Pa -	Scheiner, J.	1908POPot..59.....S
Sei1908	+Po	Pub. Obs. Potsdam 20, #59, 1908
Sei1913A	Pa -	Scheiner, J.	1913QB811.B8.......
Sei1913A		cited by Burnham (Carnegie Inst. Wash. #168, 1913)
Sei1932A	Pa -	Scheiner, J.	1932QB821.A43......
Sei1932A		cited in ADS (Aitken Double Star Cat.), 1932

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
08181+3117	SEI 492		1998	3	342	32.7	9.60	12.10	F5	D	081803.56+311640.9
08181+3117	SEI 492		2001	4	342	32.7	9.60	12.10	F5	D	081803.56+311640.9
08181+3117	SEI 492		2010	5	342	33.1	10.12	12.79	F5		081803.56+311640.9
08181+3117	SEI 492		2015	6	342	33.2	10.12	12.79	F5		081803.56+311640.9

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WDS 08181+3117 SEI 492 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 08181+3117 SEI 492 : MEASURES

No records found.

WDS 08181+3117 : VIRTUAL EYEPIECE

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WDS 08181+3117 : ALADIN DSS IMAGE @ 08^h 18^m 03.56^s +31° 16' 40.9"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 08181+3117 SEI 492 : NEIGHBORHOODS

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Pass over with the mouse cursor to display the catalog designation.

Show	name	coord_2000	discov#	comp	pa	sep	dist(')
Show		08181+3117	SEI 492		342	33.2
Show		08186+3138	CVR 77		106	64.5	23
Show		08187+3139	SLW 233		222	124.3	24
Show		08186+3054	TDS5696		304	0.6	25
Show		08181+3050	STF1212		241	5.5	27
Show		08151+3124	SKF 604		116	1.8	40
Show		08206+3148	COU1558		58	1.1	45
Show		08197+3201	OSW 45		204	31.4	50
Show		08219+3100	SEI 493		334	22.7	52
Show		08198+3207	SLW 236		211	12.6	55
Show		08160+3026	FYM 614	AB	41	17.1	57
Show		08160+3026	FYM 614	AC	150	13.8	57
Show		08135+3134	SKF 595		251	1.0	62
Show		08167+3216	ES 293		214	4.6	62
Show		08230+3106	TDS 462		321	1.9	64
Show		08144+3202	TDS5637		103	0.8	65
Show		08144+3029	SKF 599		139	1.7	68
Show		08201+3219	HU 626		154	3.2	68
Show		08157+3222	SKF 607		222	1.0	73
Show		08230+3032	A 548		257	2.4	78
Show		08226+3021	TDS5773		133	0.5	81
Show		08238+3039	TDS 465		130	1.6	83
Show		08117+3132	SKF 585		168	1.4	84
Show		08238+3159	STJ 60		10	1.3	85
Show		08126+3028	STF1195	AB	333	9.2	86
Show		08126+3028	HO 643	AC	143	21.3	86
Show		08238+3034	SKF 630		29	1.4	86
Show		08224+3227	SEI 494		179	27.2	90
Show		08156+2951	SLW 230		288	17.7	92
Show		08233+3014	TDS 463		326	1.0	93
Show		08175+3250	HU 625		355	1.8	94
Show		08149+3245	TDS5643		261	0.5	97
Show		08230+3002	A 547		242	1.9	99
Show		08258+3104	HJ 446	AB	343	39.9	100
Show		08258+3104	OPI 14	AC	261	239.3	100
Show		08258+3104	OPI 14	AD	41	361.5	100
Show		08265+3118	TDS 469		159	0.8	108
Show		08116+3227	STT 564	AB	8	106.6	109
Show		08116+3227	STT 564	AC	66	289.3	109
Show		08116+3227	CRJ 2	Aa,Ab	190	0.5	109
Show		08116+3227	FYM 620	AD	204	44.2	109
Show		08244+3229	SEI 495		2	9.4	109
Show		08262+3147	DAM1408		359	11.3	109
Show		08264+3151	TDS5830		132	0.6	112
Show		08122+2954	CVR 487		209	11.4	113
Show		08239+3245	SKF 631		177	1.1	116
Show		08136+2933	CVR 76		72	14.2	119
Show		08100+3017	BKO 330		86	19.0	121
Show		08147+3311	HU 624		247	1.1	122
Show		08095+3213	CHR 190	Aa,Ab	148	0.2	123
Show		08095+3213	STF1187	AB	21	3.1	123

WDS 08181+3117 : COMPONENTS

	A
B	pa=344.8° sep=32.79"

08181+3117 A

Componente originario normalizzato	AB	Coord arcsec 2000	081803.56+311640.9	Mag	10.12	Spectral class	F5 (yellow-white)
PmRA	-14.00	PmDE	-42.0	HIP	40665	Tycho2	2470-00118-1
BD	BD+31 1778

Tycho2

Tycho2	2470-00118-1	Pflag		RAmdeg	124.51480110	DEmdeg	31.27793911
PmRA	-13.7	PmDE	-39.6	E RAmdeg	15	E DEmdeg	20
E pmRA	1.3	E pmDE	1.3	EpRAm	1988.84	EpDEm	1986.12
Num	9	Q RAmdeg	0.8	Q DEmdeg	0.9	Q pmRA	0.8
Q pmDE	0.8	BTmag	10.575	E BTmag	0.035	VTmag	10.121
E VTmag	0.031	Prox	999	TYC	T	HIP	40665
CCDM		RAdeg	124.51483528	DEdeg	31.27803278	EpRA 1990	1.79
EpDE 1990	1.46	E RAdeg	16.4	E DEdeg	23.3	Posflg
Corr	0.3

Hipparcos

Catalog	H	HIP	40665	Proxy		RAhms	08 18 03.56
DEdms	+31 16 40.9	Vmag	10.1	VarFlag		R Vmag	H
RAdeg	124.515	DEdeg	31.278	AstroRef		Plx	5.26
CCDM	08181+3117	N CCDM	I	Nsys	1	Ncomp	1
MultFlag		Source		Qual		M HIP
Theta		Rho		HD		BD	BD+31 1778
CD		CP		Dm number	+31 1778	VIred	0.56
SpType	F5	R SpType		Coord arcsec 2000	081803.56+311640.9

Hipparcos 2

HIP	40665	Sn	5	So	0	Nc	1
RArad	2.1731938434	DErad	0.545904636	Plx	5.08	PmRA	-12.57
PmDE	-41.69	E RArad	1.23	E DErad	0.68	E Plx	1.59
E pmRA	1.78	E pmDE	1.06	Hpmag	10.1961	E Hpmag	0.0024
SHp	0.024	VA	0	BV	0.425	E BV	0.047
VI	0.49

CCDM

Ccdm	08181+3117	RComp		Comp	A	Note1
Note2		Discov num		DRAs	-2.46	DDEs	-19.7
R dRAs	10	Year		Theta		Rho
Obs	2	Vmag	9.6	Sp		PmNote	*
PmRA	-18	PmDE	-49	Dm number	+31 1778	Cat1	BD
Name2	+31 852	Cat2	AGK2/3	HD		M HD
ADS BDS		M ADS BDS		N IDS		IDS	08118N3135A
HIC	40665

08181+3117 B

Componente originario normalizzato	AB		Coord arcsec 2000	081802.89+311712.5		Mag	12.79		PmRA	-2.00
PmDE	-1.0		Calc delta mag	2.67		Calc coord	yes

CCDM

Ccdm	08181+3117	RComp		Comp	B	Note1
Note2		Discov num	SEI 492	DRAs		DDEs
R dRAs		Year	1894	Theta	337	Rho	29.0
Obs	1	Vmag	12.1	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS		M ADS BDS		N IDS		IDS	08118N3135B
HIC