PN K4-35

SUSPECTED MILKY WAY

Constellation
Vulpecula

Equatorial coordinates
α = 19 48 53.381
δ = +20 07 07.647

Galactic coordinates
l = 57.3168°
b = -2.8923°

Suspected	1974^Ref
Confirmed	-
Symbiotic IR type	S?^Ref
Hot component type	-
Outbursts	-

Identifiers

PN K4-35	IRAS 19467+1959	GSC2.4.2 N1U6013209	AAVSO -
SIMBAD PN K 4-35	Pan-STARRS 132142972224503095	SAO -	VSX 2208586
GAIA DR3 1824992180293804160	SkyMapper -	WRAY -	GCVS -
2MASS J19485338+2007077	HIP -	Hen -	BD -
WISE J194853.39+200707.8	TYC -	ESO -	HD -

Symbiotic Catalogs

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

Position

Right ascension (°)	297.2224^Ref	Parallax (mas)	0.039±0.105^Ref	Reddening E(B-V) (mag)	0.71±0.01^Ref ^{, Note}
Declination (°)	20.1188^Ref	Distance (kpc)	6.80^Ref ^{, Note}, 2.86^Ref ^{, Note}
Galactic longitude (°)	57.3168^Ref	Proper motion in α (mas/yr)	-2.78±0.10^Ref
Galactic latitude (°)	-2.8923^Ref	Proper motion in δ (mas/yr)	-5.12±0.11^Ref

Observations

X-Ray	-	IR type	S?^Ref	Radio	-
X-Ray type	-	J (mag)	6.97^Ref	Flickering	-
GALEX FUV (mag)	-	H (mag)	5.94^Ref	Outbursts	-
GALEX NUV (mag)	-	K (mag)	5.38^Ref	Outburst type	-
IUE	No^Ref	WISE W1 (mag)	4.95^Ref	Jets	-
FUSE	No^Ref	WISE W2 (mag)	4.46^Ref	Resolved nebula	-
U (mag)	-	WISE W3 (mag)	3.80^Ref	IPmax (eV)	-
B (mag)	-	WISE W4 (mag)	3.21^Ref	[O III] lines	-
V (mag)	11.86^Ref	IRAS 12μm (Jy)	0.94^Ref	He II lines	-
R (mag)	15.11^Ref	IRAS 25μm (Jy)	0.46^Ref	[Fe VII] lines	-
I (mag)	-	IRAS 60μm (Jy)	0.41^Ref	O VI lines	-
BP (mag)	16.32^Ref	IRAS 100μm (Jy)	2.86^Ref
G (mag)	12.40^Ref	AKARI S09 (Jy)	1.07^Ref
RP (mag)	10.60^Ref	AKARI S18 (Jy)	0.49^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	-	Mass (M_⊙)	-	Pulsation	Yes^Ref
Eff. temperature (K)	-	Radius (R_⊙)	-	Type	Mira^Ref
IR type	S?^Ref	Luminosity (L_⊙)	-	Pulsation period (days)	378.8398975^Ref
Metallicity [Fe/H]	-			Pulsation ephemeris	-

Hot component

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

Links

SIMBAD CDS Portal

Notes

Allen (1974) initially designating it as a compact PN resembling a late-type star (his class S), suggesting a potential symbiotic or VV Cephei-type nature for objects in this class. Subsequent classifications include an M-type star in Acker et al. (1987) and Acker & Stenholm (1990), a long-period variable in Mowlavi et al. (2018), and a Mira variable in Heinze et al. (2018).

References

Acker, A., Chopinet, M., Pottasch, S. R. et al., 1987, A&AS, 71, 163, 1987A&AS...71..163A
Acker, A., Stenholm, B., 1990, A&AS, 86, 219, 1990A&AS...86..219A
Allen, D. A., 1974, MNRAS, 168, 1, 1974MNRAS.168....1A
Heinze, A. N., Tonry, J. L., Denneau, L. et al., 2018, AJ, 156, 5, 241, 2018AJ....156..241H
Mowlavi, N., Lecoeur-Taïbi, I., Lebzelter, T. et al., 2018, A&A, 618, A58, 2018A&A...618A..58M

Last updated: April 30, 2022