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Results for object MESSIER 104 ([MSC2011] J123959.23-113722.7)

Overview
Cross-IDs (66)
Coordinates (73)
Redshifts (36)
Distances (31)
Classifications (43)
Galactic Extinctions
Notes (25)
Diameters (7)
Photometry & SED (336)
Spectra (25)
Images (135)
References (961)
External Links
Survey Coverage

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POSS-II F (North), AAO-SES/SERC-ER (South), Red image
View in IRSA Finderchart
Image Credit: Caltech or AAO/ROE

Selected data and derived quantities for MESSIER 104†. More information in the tabs above.
Cross-identifications				Essential note
MESSIER 104; NGC 4594; UGCA 293; MCG -02-32-020; Sombrero Galaxy
Coordinates for Preferred Position
Equatorial (J2000)					Galactic
RA, Dec	RA, Dec [Deg]	Unc Semi-major,minor ["]	Unc PA [deg]	Reference	Lon, Lat [deg]
12h39m59.4318s, -11d37m22.996s	189.997633, -11.623054	5.30E-03, 1.93E-03	0	2006AJ....131.1872P	298.460551, 51.149290
Preferred Redshift & Derived Quantities [H₀ = 67.8 km/sec/Mpc], Ωmatter = 0.308, Ωvacuum = 0.698]					Redshift-independent Distances
z (Helio)	V (Helio) [km/s]	Reference	V (CMB) [km/s]	Hubble Distance (CMB) [Mpc]	# Measurements
0.00342 +/- 0.00002	1024.091180 +/- 5.096472	2000MNRAS.313..469S	1368 +/- 25	20.17 +/- 1.46	31
Classifications
Object Type	Morphology	Reference	Activity Type	Reference	Other
G	SA(s)a edge-on	1991RC3.9.C...0000d	unobscured Seyfert 2	2002A&A...394..435P	SA(s)a;LINER Sy1.9
Quick-look Angular & Physical Diameters				Foreground Galactic Extinction (2011ApJ...737..103S)
Passband	Diameter ["]	Reference	Diameter [kpc]	A_λ [mag] V	A_λ [mag] K
RC3 D_0 (blue)	534.80	1991RC3.9.C...0000d	29.09	0.140	0.015
Quick-look Photometry & Luminosities (brightest flux in each spectral region)
Spectral region	Band	Apparent mag or flux	Reference	Absolute Mag or νL_ν [W]	νL_ν [L_☉(bol)]
X-Ray	0.2-4 keV (EINSTEIN)	29.24E-13 ergs sec^-1^ cm^-2^	1992ApJS...80..531F	4.40E+33 [W]	1.15E+07
UV	NUV (GALEX) AB	12.57 +/- 0.03 mag	2011ApJS..192....6L	-17.59 +/- 0.29 [mag]	1.72E+09 +/- 2.03E+08
Visible	I	4.30 Jy	2007ApJ...655..863D	2.40E+37 [W]	6.23E+10
Near-IR	H_tot (2MASS LGA)	5.207 +/- 0.015 mag	2003AJ....125..525J	-24.95 +/- 0.29 [mag]	6.03E+10 +/- 6.99E+09
Far-IR	FIR (IRAS)	4.27E-13 W m^-2^	1988ApJS...68...91R	6.45E+35 [W]	1.68E+09
Radio	80 MHz	5. Jy	1995AuJPh..48..143S	6.02E+30 [W]	1.57E+04
†Derived quantities are based on the median redshift-independent distance when available, otherwise the preferred redshift is used with the selected cosmological parameters (which can be changed in search options).
Cosmological params can be changed in search options.

Cross-identifications for MESSIER 104

Coordinates for MESSIER 104

Preferred Position: 12h39m59.4318s -11d37m22.996s Equatorial J2000.0 ()

Preferred Position of MESSIER 104

Reference Frame	Longitude	Latitude	Longitude	Latitude	Uncertainty Ellipse (arcsec)
	Decimal Degrees	Decimal Degrees	Sexagesimal	Sexagesimal	Semimajor (a)	Semiminor (b)	PA (deg)
RA/Dec Equatorial (J2000.0)	189.997633	-11.623054	12h39m59.4318s	-11d37m22.996s	5.30E-03	1.93E-03	0
RA/Dec Equatorial (B1950.0)	189.347445	-11.348598	12h37m23.3868s	-11d20m54.954s	5.30E-03	1.93E-03	0
Galactic	298.460551	51.149290			5.30E-03	1.93E-03	176
Supergalactic	126.690752	-6.680009			5.30E-03	1.93E-03	105
Ecliptic (J2000.0)	193.756467	-6.730879			5.30E-03	1.93E-03	157
Ecliptic (B1950.0)	193.058637	-6.728834			5.30E-03	1.93E-03	157

Measured Positions for MESSIER 104

Redshifts and Derived Quantities for MESSIER 104

Preferred Redshift: Z = 0.00342, H₀ = 67.8 km/sec/Mpc, Ωmatter = 0.308, Ωvacuum = 0.698

Quantities Derived from Preferred Redshift for MESSIER 104

Calculated and Corrected Velocities
Type	Velocities	Reference
V (Heliocentric)	1024 ± 5 km/s	2000MNRAS.313..469S
V (Kinematic LSR)	1025 ± 5 km/s	1986MNRAS.221.1023K
V (Galactocentric GSR)	904 ± 7 km/s	1991RC3.9.C...0000d
V (Local Group)	828 ± 13 km/s	1996AJ....111..794K
V (3K CMB)	1368 ± 25 km/s	1996ApJ...473..576F
V (Virgo Infall only)	955 ± 16 km/s	2000ApJ...529..786M
V (Virgo + GA only)	930 ± 16 km/s	2000ApJ...529..786M
V (Virgo + GA + Shapley)	926 ± 16 km/s	2000ApJ...529..786M
Hubble Flow Distance and Distance Modulus (where H₀ = 67.8 km/sec/Mpc ± km/sec/Mpc)
Type	Distance	Modulus
D (Galactocentric GSR)	13.34 ± 0.94 Mpc	(m-M) = 30.63 ± 0.15 mag
D (Local Group)	12.22 ± 0.88 Mpc	(m-M) = 30.44 ± 0.15 mag
D (3K CMB)	20.17 ± 1.46 Mpc	(m-M) = 31.52 ± 0.15 mag
D (Virgo Infall only)	14.09 ± 1.00 Mpc	(m-M) = 30.74 ± 0.15 mag
D (Virgo + GA only)	13.72 ± 0.96 Mpc	(m-M) = 30.69 ± 0.15 mag
D (Virgo + GA + Shapley)	13.66 ± 0.96 Mpc	(m-M) = 30.68 ± 0.15 mag

Scale at Hubble Flow Distances
Type	Values
Scale (Galactocentric GSR)	65 pc/arcsec = 0.065 kpc/arcsec = 3.88 kpc/arcmin = 0.23 Mpc/degree
Scale (Local Group)	59 pc/arcsec = 0.059 kpc/arcsec = 3.55 kpc/arcmin = 0.21 Mpc/degree
Scale (3K CMB)	98 pc/arcsec = 0.098 kpc/arcsec = 5.87 kpc/arcmin = 0.35 Mpc/degree
Scale (Virgo Infall only)	68 pc/arcsec = 0.068 kpc/arcsec = 4.10 kpc/arcmin = 0.25 Mpc/degree
Scale (Virgo + GA only)	67 pc/arcsec = 0.067 kpc/arcsec = 3.99 kpc/arcmin = 0.24 Mpc/degree
Scale (Virgo + GA + Shapley)	66 pc/arcsec = 0.066 kpc/arcsec = 3.97 kpc/arcmin = 0.24 Mpc/degree
Cosmology-Corrected Quantities [H₀ = 67.8 km/sec/Mpc, Ω_matter = 0.308, Ω_vacuum = 0.698]
[Redshift 0.004562 as corrected to the Reference Frame defined by the 3K CMB]
Type	Values
Luminosity Distance	20.2 Mpc (m-M) = 31.53 mag
Angular-Size Distance	20.1 (m-M) = 31.51 mag
Co-Moving Radial Distance	20.2 (m-M) = 31.52 mag
Co-Moving Tangential Distance	20.2 (m-M) = 31.52 mag
Co-Moving Volume	3.43e-05 Gpc^3
Light Travel-Time	0.066 Gyr
Age at Redshift 0.004562	13.765 Gyr
Age of Universe	13.830 Gyr
Scale (Cosmology Corrected)	97 pc/arcsec = 0.097 kpc/arcsec = 5.83 kpc/arcmin = 0.35 Mpc/degree
Surface Brightness Dimming	Flux Density per Unit Area = 0.98196; Magnitude per Unit Area = 0.01977 mag

Measured Redshifts of MESSIER 104

Images for object MESSIER 104 ([MSC2011] J123959.23-113722.7)

POSS-II F (North), AAO-SES/SERC-ER (South), Red image
View in IRSA Finderchart

Image Credit: Caltech or AAO/ROE

Preview	File Size KB	Information	Lambda m	Clambda	Spectral Region	Band	FOV 1 arcmin	FOV 2 arcmin	Res. arcsec	Telescope	Refcode
Preview	File Size KB	Information	Lambda m	Clambda	Spectral Region	Band	FOV 1 arcmin	FOV 2 arcmin	Res. arcsec	Telescope	Refcode

Literature References for MESSIER 104

External Resource Links for MESSIER 104

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Help Detailed Information for a Named Object

Results for object MESSIER 104 ([MSC2011] J123959.23-113722.7)

Images for object MESSIER 104 ([MSC2011] J123959.23-113722.7)