00057+4549 POP 217AY

Coord 2000	00057+4549		Discov num	POP 217		Comp	AY		Coord arcsec 2000	00 05 41.03 +45 48 43.3
Date first	1998		Date last	2018		Obs	9
Pa first	80		Pa last	78		P.A. Now (θ)	78°
Sep first	205.8		Sep last	188.8		Sep. Now (ρ)	188.8"
Mag pri	8.98		Mag sec	14.80		delta mag (ΔM)	5.82		Spectral class	K6 (yellow-orange)
Pri motion ra	+879		Sec motion ra	+005
Pri motion dec	-154		Sec motion dec	+016
Notes	N U W (See Notes, Proper motion indicates non-physical, )

rPM=0.998 This double is not physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		36046	00 05 41 +45 48 43	STT 547 AB	2020	428	191	5.9	8.98	9.15	0.17	Y
Show		36046	00 05 41 +45 48 43	STT 547 AC	2018	29	263	117.0	8.98	13.71	4.73
Show		36046	00 05 41 +45 48 43	STT 547 AD	2018	37	230	108.4	8.98	12.51	3.53
Show		36046	00 05 41 +45 48 43	STT 547 AE	2018	46	346	58.7	8.98	11.75	2.77
Show		36046	00 05 41 +45 48 43	STT 547 AF	2018	41	254	330.0	8.98	10.19	1.21	Y
Show		36046	00 05 41 +45 48 43	POP 217 AP	2018	37	314	17.4	8.98	13.40	4.42
Show		36046	00 05 41 +45 48 43	POP 217 AQ	2006	7	130	20.0	8.98	16.00	7.02
Show		36046	00 05 41 +45 48 43	POP 217 AX	2006	2	222	12.0	8.98
Show		36046	00 05 41 +45 48 43	POP 217 AY	2018	9	78	188.8	8.98	14.80	5.82		<===
Show		36048	00 05 41 +45 48 37	STT 547 BC	2016	8	266	115.7	9.15	13.71	4.56
Show		36048	00 05 41 +45 48 37	STT 547 BD	2016	10	233	106.4	9.15	12.51	3.36
Show		36048	00 05 41 +45 48 37	STT 547 BE	2016	16	346	64.4	9.15	11.75	2.60
Show		36048	00 05 41 +45 48 37	STT 547 BF	2018	35	251	324.2	9.15	10.19	1.04
Show		36048	00 05 41 +45 48 37	STT 547 BP	2016	9	331	20.3	9.15	13.10	3.95
Show		36046	00 05 31 +45 48 26	PAL 2 Ca,Cb	2016	20	91	6.1	13.71	14.90	1.19
Show		36048	00 06 00 +45 49 20	POP 217 YG	2016	11	188	9.7	14.80	15.80	1.00

12-fold system
11 visible stars in this system

Precise pa	78.2		Precise sep	188.8		Constellation	Hydra		SAO	36046
HIP	473		Tycho2	3246-01100-1		HD	38		GL	Gl 4A
BD	BD+45 4408		Distance	11.31		Distance ly	36.89

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
00057+4549	POP 217	AY	2005	5	79	197.1	9.59	14.82	K6	D	000541.03+454843.3
00057+4549	POP 217	AY	2016	8	78	190.1	8.98	14.80	K6	NU	000541.03+454843.3
00057+4549	POP 217	AY	2018	9	78	188.8	8.98	14.80	K6	NU	000541.03+454843.3

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