10307-6121 DUN 87 (HD 91270)

10^h 30^m 39.25^s -61° 21' 23.3" P.A. 331.00 sep 82.2 mag 6.60,7.55 Sp M2IIIe dist. 225.73 pc (736.33 l.y.)

Coord 2000	10307-6121	Discov num	DUN 87	Comp		Coord arcsec 2000	10 30 39.25 -61 21 23.3
Date first	1826	Date last	2015	Obs	17
Pa first	336	Pa last	331.1	P.A. Now (θ)	331.1°
Sep first	85.3	Sep last	82.215	Sep. Now (ρ)	82.215"
Mag pri	6.60	Mag sec	7.55	delta mag (ΔM)	0.95	Spectral class	M2IIIe (red)
Pri motion ra	+003	Sec motion ra	-011
Pri motion dec	+013	Sec motion dec	+002
Notes	N Y (See Notes, Parallax indicates components are non-physical)

rPM=1.335

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 91270	Constellation	Carina	SAO	250992	HIP	51461
Tycho2	8956-01208-1	Gaia DR2	5253945227372557312	HD	91270	HR	4128
GC	14450	CP	CP-60 1945	Distance	225.73	Distance ly	736.33

WDS 10307-6121 DUN 87 (HD 91270) : NOTES

discov_num	notes	refcode
DUN 87	B is CPD-60@1944.

REFERENCES

refcode	metd	author	reference
Dun1829	Ma -	Dunlop, J.	1829MmRAS...3..257D
Dun1829		MemRAS 3, 257, 1829
Dun1829		some measures corrected in LRR2022

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
10307-6121	DUN 87		2000	14	331	82.3	6.60	7.55	M2IIIe	NYD	103039.25-612123.3
10307-6121	DUN 87		2010	16	331	82.1	6.60	7.55	M2IIIe	NY	103039.25-612123.3
10307-6121	DUN 87		2015	17	331	82.2	6.60	7.55	M2IIIe	NY	103039.25-612123.3

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

WDS 10307-6121 DUN 87 (HD 91270) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 10307-6121 DUN 87 (HD 91270) : MEASURES

No records found.

WDS 10307-6121 (HD 91270) : VIRTUAL EYEPIECE

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WDS 10307-6121 (HD 91270) : ALADIN DSS IMAGE @ 10^h 30^m 39.25^s -61° 21' 23.3"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 10307-6121 DUN 87 (HD 91270) : 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		10307-6121	DUN 87		331	82.2
Show		10313-6134	I 33	AB	230	0.8	14
Show		10313-6134	I 33	AB,C	119	5.1	14
Show		10311-6135	I 174		46	1.3	14
Show		10329-6139	VOU 87		313	3.0	24
Show		10314-6146	I 32		344	5.3	25
Show		10330-6144	YMG 34		200	0.5	29
Show		10249-6138	DAM2355		48	2.3	45
Show		10244-6128	DAM2351		265	1.1	46
Show		10363-6101	KRV 31		235	20.9	46
Show		10244-6133	HU 1599		5	1.2	47
Show		10271-6200	HDS1503	AB	13	0.3	47
Show		10271-6200	TDS7279	AB,C	316	64.1	47
Show		10297-6210	TDS7297		106	0.5	49
Show		10243-6103	DAM2349		291	6.5	50
Show		10375-6128	TDS7380		175	2.4	50
Show		10269-6040	B 1678	AB	236	0.3	50
Show		10269-6040	B 1678	AB,C	199	4.3	50
Show		10269-6040	B 1678	AB,DE	337	19.6	50
Show		10269-6040	B 1678	DE	50	1.8	50
Show		10269-6040	B 1678	DE,F	336	7.3	50
Show		10292-6031	JSP 395	AB	106	0.1	52
Show		10292-6031	HLN 15	AB,C	188	7.4	52
Show		10238-6106	TDS7241		70	0.6	52
Show		10364-6156	JSP 406		282	1.3	54
Show		10277-6032	HDS1504		176	6.7	55
Show		10352-6211	KPP 614		186	5.6	60
Show		10363-6038	JSP 405		357	0.5	61
Show		10328-6022	JSP 398		155	1.4	62
Show		10320-6019	JSP 906		145	3.7	64
Show		10310-6015	KPP1467		257	11.1	67
Show		10396-6104	TDS7401		76	2.4	67
Show		10296-6013	B 1160	AB	165	1.4	70
Show		10296-6013	B 1160	AC	346	5.3	70
Show		10295-6013	DAM2384		158	7.8	70
Show		10256-6021	TDS7263		14	1.6	71
Show		10379-6031	TDS7383		226	0.5	73
Show		10408-6127	TDS 599		184	0.9	74
Show		10351-6015	TDS7354		241	2.6	74
Show		10338-6011	TDS7338		224	1.0	75
Show		10348-6013	I 1090		84	2.3	75
Show		10288-6235	DUN 85		220	21.7	75
Show		10201-6135	HOA 1	AB	42	13.7	77
Show		10201-6135	DAM 54	AC	76	12.1	77
Show		10201-6135	HOA 1	AD	252	24.4	77
Show		10303-6005	JSP 396	AB	276	1.5	77
Show		10303-6005	TDS7305	AC	248	10.7	77
Show		10339-6007	JSP 400		228	0.9	78
Show		10415-6102	B 2718	AB	63	7.3	81
Show		10415-6102	DAW 199	AC	243	9.5	81
Show		10415-6102	HJ 4346	AD	83	28.2	81

WDS 10307-6121 : COMPONENTS

	A
B	pa=345.2° sep=74.46"

10307-6121 A

Componente originario normalizzato	AB	Name	HD 91270	Coord arcsec 2000	103039.25-612123.3	Mag	6.6
Spectral class	M2IIIe (red)	PmRA	3.00	PmDE	13.0	SAO	250992
HIP	51461	Tycho2	8956-01208-1	HD	91270	HR	4128
GC	14450	CP	CP-60 1945

Tycho2

Tycho2	8956-01208-1	Pflag		RAmdeg	157.66352106	DEmdeg	-61.35647518
PmRA	2.4	PmDE	13.9	E RAmdeg	4	E DEmdeg	4
E pmRA	1.4	E pmDE	1.5	EpRAm	1991.31	EpDEm	1991.47
Num	12	Q RAmdeg	0.8	Q DEmdeg	0.5	Q pmRA	0.8
Q pmDE	0.5	BTmag	8.544	E BTmag	0.017	VTmag	6.599
E VTmag	0.010	Prox	823	TYC	T	HIP	51461
CCDM		RAdeg	157.66350917	DEdeg	-61.35650722	EpRA 1990	1.61
EpDE 1990	1.68	E RAdeg	4.2	E DEdeg	4.2	Posflg
Corr	-0.2

SAO

SAO	250992	DelFlag		RA1950		PmRA1950	-0.0001
DE1950		PmDE1950	0.019	Vmag	6.7	SpType	M0
Double code		Source	70	CatNum	14450	DM	CP-60 1945
DMcomp		BDsup		HD	91270	M HD	0
GC	14450	RA1950rad	2.74396321	DE1950rad	-1.06638531	PmRA2000	-0.0004
PmDE2000	0.022

Hipparcos

Catalog	H	HIP	51461	Proxy		RAhms	10 30 39.24
DEdms	-61 21 23.4	Vmag	6.41	VarFlag	1	R Vmag	H
RAdeg	157.664	DEdeg	-61.3565	AstroRef		Plx	4.02
CCDM	10306-6121	N CCDM	I	Nsys	2	Ncomp	1
MultFlag		Source		Qual	S	M HIP
Theta		Rho		HD	91270	BD
CD		CP	CP-60 1945	Dm number	-60 1945	VIred	2.25
SpType	M2III	R SpType		Coord arcsec 2000	103039.24-612123.4

Hipparcos 2

HIP	51461	Sn	5	So	0	Nc	1
RArad	2.75174739	DErad	-1.0708730627	Plx	4.43	PmRA	2.77
PmDE	13.41	E RArad	0.3	E DErad	0.31	E Plx	0.36
E pmRA	0.39	E pmDE	0.33	Hpmag	6.4634	E Hpmag	0.0019
SHp	0.018	VA	2	BV	1.65	E BV	0.012
VI	2.25

10307-6121 B

Componente originario normalizzato	AB		Coord arcsec 2000	103036.60-612011.3		Mag	7.55		PmRA	-11.00
PmDE	2.0		Calc delta mag	0.95		Calc coord	yes