12280-6819 DON 527 AB

12^h 28^m 01.13^s -68° 19' 38.7" P.A. 39.00 sep 0.9 mag 10.10,12.30

Coord 2000	12280-6819	Discov num	DON 527	Comp	AB	Coord arcsec 2000	12 28 01.13 -68 19 38.7
Date first	1929	Date last	2020	Obs	3
Pa first	45	Pa last	39.3	P.A. Now (θ)	39.3°
Sep first	0.6	Sep last	0.915	Sep. Now (ρ)	0.915"
Mag pri	10.10	Mag sec	12.30	delta mag (ΔM)	2.2	Spectral class
Pri motion ra	-034	Sec motion ra
Pri motion dec	-001	Sec motion dec
Notes

Nature of this double is uncertain.

12280-6819 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			12 28 01 -68 19 39	DON 527 AB	2020	3	39	0.9	10.10	12.30	2.20		<===
Show			12 28 01 -68 19 39	DON 527 AB,CD	2015	7	98	9.4	10.85	11.31	0.46
Show			12 28 03 -68 19 40	DON 527 CD	2020	4	356	0.9	11.50	11.84	0.34

Quadruple system
6 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation

Musca

Gaia DR2

5856663519927935488

WDS 12280-6819 DON 527 AB : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
Don1937	Ma j	Donner, H.F.	1937MmRAS..65...51R
Don1937		MemRAS 65, 51, 1937
Don1955	Ma -	Donner, H.F.	1955POMic..11....1R
Don1955		Pub. Univ. Michigan Obs. 11, 1, 1955
Don1964	Ma j	Donner, H.F.	1964POMic...9...73R
Don1964		Pub. Univ. Michigan Obs. 9, 73, 1964

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
12280-6819	DON 527	AB	1948	2	43	0.6	10.10	12.30			122801.13-681938.7
12280-6819	DON 527	AB	2020	3	39	0.9	10.10	12.30			122801.13-681938.7

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WDS 12280-6819 DON 527 AB : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 12280-6819 DON 527 AB : MEASURES

No records found.

WDS 12280-6819 : VIRTUAL EYEPIECE

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WDS 12280-6819 : ALADIN DSS IMAGE @ 12^h 28^m 01.13^s -68° 19' 38.7"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 12280-6819 DON 527 AB : 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		12280-6819	DON 527	AB	39	0.9
Show		12280-6819	DON 527	AB,CD	98	9.4
Show		12280-6819	DON 527	CD	356	0.9	1
Show		12324-6753	DON 534	BC	278	0.9	37
Show		12324-6753	MLO 44	A,BC	173	6.6	37
Show		12348-6817	KPP1082		253	8.6	38
Show		12274-6859	BRT1998		187	5.0	40
Show		12348-6830	DON 538		105	0.8	40
Show		12334-6850	HDS1763		286	22.6	43
Show		12346-6754	DON1101		255	6.9	45
Show		12349-6756	DON 539		321	2.0	46
Show		12305-6905	BRT1999		140	4.3	48
Show		12189-6822	TDS8320		78	1.2	51
Show		12187-6755	LDS 401		20	120.7	59
Show		12221-6731	HDS1742	Aa,Ab	128	0.5	59
Show		12221-6731	HDO 215	AB	126	32.7	59
Show		12220-6910	MLO 42		2	4.1	61
Show		12209-6732	DON 522		194	2.6	63
Show		12398-6804	TDS8480		280	0.6	68
Show		12372-6908	DON 541	AB	321	28.8	70
Show		12372-6908	SHT 45	AC	198	4.9	70
Show		12372-6908	SHT 45	AD	243	3.4	70
Show		12372-6908	SHT 45	AE	159	5.8	70
Show		12372-6908	RIZ 4	Aa,Ab	-1	0.0	70
Show		12255-6929	HJ 4522	AB	66	12.7	71
Show		12255-6929	SIN 116	AC	259	19.0	71
Show		12357-6721	TDS8452		219	1.7	74
Show		12284-6938	KPP 273		305	3.0	79
Show		12202-6713	TDS 660		172	1.0	81
Show		12157-6906	DON 517		52	3.3	82
Show		12367-6713	I 906		160	1.1	84
Show		12431-6814	TDS8497		94	0.6	84
Show		12418-6749	DON 544		352	3.2	84
Show		12272-6652	RST4959		22	0.3	87
Show		12201-6701	MLO 40		139	7.1	90
Show		12387-6929	DON 543	AB	299	5.4	91
Show		12387-6929	TRR 14	AC	230	18.1	91
Show		12389-6712	HJ 4535		339	17.2	92
Show		12249-6952	KPP2986		308	2.6	94
Show		12350-6948	TDS8446		127	3.1	97
Show		12203-6947	HJ 4515		53	13.3	97
Show		12183-6700	BRT1996		177	3.6	97
Show		12421-6924	EVS 20		329	7.0	100
Show		12348-6953	HDS1766		134	0.2	101
Show		12209-6647	MLO 41		130	4.5	102
Show		12330-6641	RST 600		230	1.5	103
Show		12463-6806	R 207	AB	58	1.0	103
Show		12463-6806	RIZ 5	Aa,Ab	121	0.0	103
Show		12463-6806	RIZ 5	AC	36	95.1	103
Show		12454-6902	DON 551		330	4.2	104
Show		12397-6944	BRT2001		33	4.3	105

WDS 12280-6819 : COMPONENTS

	A	B	C
B	pa=16.8° sep=0.74"
C	pa=97.4° sep=9.27"	pa=102.0° sep=9.18"
D	pa=92.2° sep=9.18"	pa=96.7° sep=9.02"	pa=358.4° sep=0.85"

12280-6819 A

Coord arcsec 2000	122801.13-681938.7		Mag	10.1		PmRA	-34.00		PmDE	-1.0
DM	CP-67 1955

12280-6819 B

Coord arcsec 2000

122801.17-681938.0

Mag

12.3

Calc delta mag

2.2

Calc coord

yes

12280-6819 C

Coord arcsec 2000	122802.79-681939.9		Mag	11.5		PmRA	-30.00		PmDE	-1.0
Tycho2	9228-00841-1		Calc delta mag	1.4

Tycho2

Tycho2	9228-00841-1	Pflag		RAmdeg	187.00473478	DEmdeg	-68.32743405
PmRA	-34.1	PmDE	-1.0	E RAmdeg	40	E DEmdeg	40
E pmRA	2.5	E pmDE	2.4	EpRAm	1988.79	EpDEm	1988.41
Num	3	Q RAmdeg	1.6	Q DEmdeg	0.0	Q pmRA	1.6
Q pmDE	0.0	BTmag	11.479	E BTmag	0.066	VTmag	10.850
E VTmag	0.062	Prox	92	TYC	T	HIP
CCDM		RAdeg	187.00495028	DEdeg	-68.32743167	EpRA 1990	1.59
EpDE 1990	1.57	E RAdeg	40.8	E DEdeg	41.3	Posflg	P
Corr	-0.1

12280-6819 D

Coord arcsec 2000	122802.79-681939.0		Mag	11.84		PmRA	-30.00		PmDE	-1.0
Calc delta mag	1.74		Calc coord	yes