12487-2534 DON 558

12^h 48^m 47.48^s -25° 33' 42.2" P.A. 279.00 sep 4.9 mag 11.75,11.89

Coord 2000	12487-2534	Discov num	DON 558	Comp		Coord arcsec 2000	12 48 47.48 -25 33 42.2
Date first	1911	Date last	2016	Obs	10
Pa first	273	Pa last	279.1	P.A. Now (θ)	279.1°
Sep first	5.1	Sep last	4.898	Sep. Now (ρ)	4.898"
Mag pri	11.75	Mag sec	11.89	delta mag (ΔM)	0.14	Spectral class
Pri motion ra	+049	Sec motion ra	-096
Pri motion dec	-011	Sec motion dec	+011
Notes	B (Blue magnitudes)

rPM=1.518

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Hydra

Gaia DR2

3496741477941274496

WDS 12487-2534 DON 558 : 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
12487-2534	DON 558		1998	5	280	4.9	11.75	11.89		DB	124847.48-253342.2
12487-2534	DON 558		1999	6	279	4.9	11.75	11.89		DB	124847.48-253342.2
12487-2534	DON 558		2010	7	280	3.8	11.75	11.89		B	124847.48-253342.2
12487-2534	DON 558		2015	8	279	4.9	11.75	11.89		B	124847.48-253342.2
12487-2534	DON 558		2016	10	279	4.9	11.75	11.89		B	124847.48-253342.2

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

WDS 12487-2534 DON 558 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 12487-2534 DON 558 : MEASURES

No records found.

WDS 12487-2534 : VIRTUAL EYEPIECE

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WDS 12487-2534 : ALADIN DSS IMAGE @ 12^h 48^m 47.48^s -25° 33' 42.2"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 12487-2534 DON 558 : 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		12487-2534	DON 558		279	4.9
Show		12493-2527	DON 560		267	2.5	10
Show		12497-2515	B 233		285	2.3	23
Show		12482-2448	HJ 4551		305	12.0	47
Show		12453-2601	UC 2397		104	47.0	55
Show		12527-2519	TDS8568		330	0.8	55
Show		12494-2639	LDS4277		80	84.3	66
Show		12520-2442	B 235		63	2.7	68
Show		12444-2604	HU 1497		326	1.6	68
Show		12485-2426	ARA2183		222	8.0	69
Show		12527-2619	LDS4288		185	26.5	69
Show		12504-2639	TDS8547		300	0.5	69
Show		12457-2633	UC 2400	AB	14	7.9	73
Show		12543-2532	DON 562		237	1.7	75
Show		12434-2514	B 2739	CD	295	7.7	75
Show		12434-2514	I 908	AB	154	3.5	75
Show		12434-2514	I 908	AC	21	39.8	75
Show		12541-2509	KPP 280		306	4.8	77
Show		12459-2425	HJ 4549		87	12.0	80
Show		12429-2514	UC 2389		50	17.6	82
Show		12427-2518	KPP 921		1	7.6	84
Show		12520-2648	B 234		296	0.6	85
Show		12438-2442	TDS8506		72	2.9	86
Show		12506-2355	UC 2414		168	11.9	102
Show		12426-2437	HJ 4542		62	38.4	102
Show		12413-2552	UC 2385		19	49.4	103
Show		12444-2701	KPP2727		180	8.6	106
Show		12434-2409	NSN 102		3	6.5	113
Show		12401-2544	BRT2995		7	4.8	118
Show		12565-2635	UC 2437	AB	46	13.8	121
Show		12565-2635	YSC 216	Aa,Ab	51	0.1	121
Show		12549-2705	UC 2431		193	14.5	124
Show		12567-2638	UC 2438		238	20.3	125
Show		12417-2657	LDS4250		325	21.9	126
Show		12506-2330	ARA1796		165	14.1	127
Show		12393-2528	UC 2379		112	10.7	129
Show		12406-2641	TVB 255		259	12.9	129
Show		12537-2724	TOK 153		147	14.8	129
Show		12440-2727	TDS 673	AB	263	1.7	131
Show		12440-2727	UC 2393	AC	330	40.6	131
Show		12432-2722	B 2300		315	10.6	132
Show		12407-2650	B 2297		94	9.8	133
Show		12476-2747	LDS4269		101	28.4	134
Show		12417-2708	RST1684		209	0.4	135
Show		12443-2334	KPP2276		87	19.2	135
Show		12483-2748	UC 2407		131	11.3	135
Show		12567-2709	KPP 281		146	3.7	143
Show		12446-2315	HDS1784		45	0.5	150
Show		12583-2403	DON 569		263	1.3	158
Show		12478-2255	KPP3880		128	1.9	160
Show		12543-2758	HJ 4556		80	5.9	162

WDS 12487-2534 : COMPONENTS

	A
B	pa=280.1° sep=4.43"

12487-2534 A

Componente originario normalizzato	AB		Coord arcsec 2000	124847.48-253342.2		Mag	11.75		PmRA	49.00
PmDE	-11.0

12487-2534 B

Componente originario normalizzato	AB		Coord arcsec 2000	124847.16-253341.4		Mag	11.89		PmRA	-96.00
PmDE	11.0		Calc delta mag	0.14		Calc coord	yes