New Online Database of Symbiotic Variables: IPHAS J205836.43+503307.2

Constellation
Cygnus

Equatorial coordinates
α = 20 58 36.430
δ = +50 33 07.226

Galactic coordinates
l = 90.1909°
b = 3.1066°

Suspected	2011^Ref
Confirmed	2011^Ref
Symbiotic IR type	D^Ref
Hot component type	shell-burning^Ref
Outbursts	-

Identifiers

IPHAS J205836.43+503307.2	IRAS 20570+5021	GSC2.4.2 N30V086083	AAVSO 000-BLJ-869
SIMBAD IRAS 20570+5021	Pan-STARRS 168663146518263133	SAO -	VSX 255907
GAIA DR3 2169002778484577920	SkyMapper -	WRAY -	GCVS -
2MASS J20583643+5033073	HIP -	Hen -	BD -
WISE J205836.37+503307.6	TYC -	ESO -	HD -

Symbiotic Catalogs

Bidelman (1954)	-	Allen (1984)	-	Belzcyński et al. (2001)	-
Gaposchkin (1957)	-	Kenyon (1986)	-	Akras et al. (2019)	IPHASJ205836.43+503307.2 (Conf.)
Boyarchuk (1969)	-	Vaidis (1988, 1991)	-

Position

Right ascension (°)	314.6518^Ref	Parallax (mas)	0.142±0.043^Ref	Reddening E(B-V) (mag)	2.71±0.04^Ref ^{, Note}
Declination (°)	50.5520^Ref	Distance (kpc)	4-11^Ref 4.82^Ref ^{, Note}, 5.00^Ref ^{, Note}
Galactic longitude (°)	90.1909^Ref	Proper motion in α (mas/yr)	-1.42±0.05^Ref
Galactic latitude (°)	3.1066^Ref	Proper motion in δ (mas/yr)	-3.52±0.05^Ref

Observations

X-Ray	-	IR type	D^Ref	Radio	-
X-Ray type	-	J (mag)	13.49^Ref	Flickering	-
GALEX FUV (mag)	-	H (mag)	10.50^Ref	Outbursts	-
GALEX NUV (mag)	-	K (mag)	8.16^Ref	Outburst type	-
IUE	No^Ref	WISE W1 (mag)	5.14^Ref	Jets	-
FUSE	No^Ref	WISE W2 (mag)	3.50^Ref	Resolved nebula	-
U (mag)	-	WISE W3 (mag)	2.12^Ref	IPmax (eV)	99^Ref
B (mag)	18.90^Ref	WISE W4 (mag)	1.50^Ref	[O III] lines	Yes^Ref
V (mag)	15.10^Ref	IRAS 12μm (Jy)	6.06^Ref	He II lines	Yes^Ref
R (mag)	14.70^Ref	IRAS 25μm (Jy)	3.26^Ref	[Fe VII] lines	Yes^Ref
I (mag)	-	IRAS 60μm (Jy)	0.81^Ref	O VI lines	No^Ref
BP (mag)	18.95^Ref	IRAS 100μm (Jy)	8.69^Ref
G (mag)	15.66^Ref	AKARI S09 (Jy)	4.78^Ref
RP (mag)	14.12^Ref	AKARI S18 (Jy)	3.05^Ref

Orbit

Orbital period (days)	-	γ velocity (km/h)	-	Size of giant’s orbit (AU)	-
Eccentricity	-	RV of giant (km/h)	-	Separation (AU)	-
Inclination (°)	-	Inferior conj. of giant (JD)	-	Mass function	-
Eclipses	-			Mass ratio	-
Orbital ephemeris	-

Cool component

Spectral type	C9^Ref	Mass (M_⊙)	-	Pulsation	Yes^Ref
Eff. temperature (K)	2000^Ref	Radius (R_⊙)	-	Type	Mira^Ref
IR type	D^Ref	Luminosity (L_⊙)	-	Pulsation period (days)	-
Metallicity [Fe/H]	-			Pulsation ephemeris	-

Hot component

Type/Spectral type	-	Mass (M_⊙)	-	Spin period (min)	-
Shell-burning/Accreting-only	shell-burning^Ref	Radius (R_⊙)	-	Accretion disk	-
Eff. temperature (K)	-	Luminosity (L_⊙)	-
Lower limit (K)	-
Upper limit (K)	-

Links

SIMBAD CDS Portal

Notes

Based on observed spectrophotometric properties and variability, it was concluded that the source is a new Galactic symbiotic star of the D-type, with the rare characteristic of containing a carbon star, likely a carbon Mira, as reported in Corradi et al. (2011).

References

Corradi, R. L. M., Sabin, L., Munari, U. et al., 2011, A&A, 529, A56, 2011A&A...529A..56C

IPHAS J205836.43+503307.2