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

Selected data and derived quantities for ARP 070†. More information in the tabs above.
Cross-identifications				Essential note
ARP 070; VV 341; CGCG 502-063; CGCG 0120.7+3032; NVSS J012327+304709				VV photo misprinted with indicator pointing south.
Coordinates for Preferred Position
Equatorial (J2000)					Galactic
RA, Dec	RA, Dec [Deg]	Unc Semi-major,minor ["]	Unc PA [deg]	Reference	Lon, Lat [deg]
01h23m27.5s, +30d46m42s	20.864583, 30.778333	2.40E+01, 2.40E+01	0	2002NEDR....1....1K	131.006500, -31.590831
Preferred Redshift & Derived Quantities [H₀ = km/sec/Mpc], Ωmatter = , Ωvacuum = ]					Redshift-independent Distances
z (Helio)	V (Helio) [km/s]	Reference	V (CMB) [km/s]	Hubble Distance (CMB) [Mpc]	# Measurements
0.03500 +/- N/A	10492.737500 +/- N/A	1992NED11.R......1N	10204 +/- 20	139.78 +/- 9.79
Classifications
Object Type	Morphology	Reference	Activity Type	Reference	Other
GPair	small, high surface brightness companion on end of arm	1966ApJS...14....1A			2.2
Quick-look Angular & Physical Diameters				Foreground Galactic Extinction (2011ApJ...737..103S)
Passband	Diameter ["]	Reference	Diameter [kpc]	A_λ [mag] V	A_λ [mag] K
				0.147	0.016
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
UV
Visible	m_p	14.5 +/- 0.4 mag	1968CGCG6.C...0000Z	-21.28 +/- 0.64 [mag]	2.95E+10 +/- 1.44E+10
Near-IR
Far-IR
Radio	1.4GHz	4.4 +/- 0.7 milliJy	1998AJ....115.1693C	1.52E+31 +/- 3.88E+30 [W]	3.95E+04 +/- 1.01E+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 ARP 070

Coordinates for ARP 070

Preferred Position: 01h23m27.5s +30d46m42s Equatorial J2000.0

Preferred Position of ARP 070 2002NEDR....1....1K

Reference Frame	Longitude	Latitude	Longitude	Latitude	Uncertainty Ellipse (arcsec)
	Decimal Degrees	Decimal Degrees	Sexigesimal	Sexigesimal	Semimajor (a)	Semiminor (b)	PA (deg)
RA/Dec Equatorial (J2000.0)	20.864583	30.778333	01h23m27.5s	+30d46m42s	2.40E+01	2.40E+01	0
RA/Dec Equatorial (B1950.0)	20.166121	30.517633	01h20m39.9s	+30d31m03s	2.40E+01	2.40E+01	0
Galactic	131.006500	-31.590831			2.40E+01	2.40E+01	0
Supergalactic	327.899457	2.072919			2.40E+01	2.40E+01	0
Ecliptic (J2000.0)	31.100391	20.351204			2.40E+01	2.40E+01	0
Ecliptic (B1950.0)	30.403850	20.347446			2.40E+01	2.40E+01	0

Measured Positions for ARP 070

Redshifts and Derived Quantities for ARP 070

Preferred Redshift: Z = 0.03500, H₀ = km/sec/Mpc, Ωmatter = , Ωvacuum =

Quantities Derived from Preferred Redshift for ARP 070

Calculated and Corrected Velocities
Type	Velocities	Reference
V (Heliocentric)	10493 ± N/A km/s	1992NED11.R......1N
V (Kinematic LSR)	10493 ± N/A km/s	1986MNRAS.221.1023K
V (Galactocentric GSR)	10633 ± 6 km/s	1991RC3.9.C...0000d
V (Local Group)	10716 ± 13 km/s	1996AJ....111..794K
V (3K CMB)	10204 ± 20 km/s	1996ApJ...473..576F
V (Virgo Infall only)	10591 ± 16 km/s	2000ApJ...529..786M
V (Virgo + GA only)	10320 ± 25 km/s	2000ApJ...529..786M
V (Virgo + GA + Shapley)	10283 ± 25 km/s	2000ApJ...529..786M
Hubble Flow Distance and Distance Modulus (where H₀ = km/sec/Mpc ± km/sec/Mpc)
Type	Distance	Modulus
D (Galactocentric GSR)	145.66 ± 10.20 Mpc	(m-M) = 35.82 ± 0.15 mag
D (Local Group)	146.79 ± 10.28 Mpc	(m-M) = 35.83 ± 0.15 mag
D (3K CMB)	139.78 ± 9.79 Mpc	(m-M) = 35.73 ± 0.15 mag
D (Virgo Infall only)	145.08 ± 10.16 Mpc	(m-M) = 35.81 ± 0.15 mag
D (Virgo + GA only)	141.36 ± 9.90 Mpc	(m-M) = 35.75 ± 0.15 mag
D (Virgo + GA + Shapley)	140.86 ± 9.86 Mpc	(m-M) = 35.74 ± 0.15 mag

Scale at Hubble Flow Distances
Type	Values
Scale (Galactocentric GSR)	706 pc/arcsec = 0.706 kpc/arcsec = 42.37 kpc/arcmin = 2.54 Mpc/degree
Scale (Local Group)	2.54 pc/arcsec = 0.712 kpc/arcsec = 42.70 kpc/arcmin = 2.56 Mpc/degree
Scale (3K CMB)	678 pc/arcsec = 0.678 kpc/arcsec = 40.66 kpc/arcmin = 2.44 Mpc/degree
Scale (Virgo Infall only)	703 pc/arcsec = 0.703 kpc/arcsec = 42.20 kpc/arcmin = 2.53 Mpc/degree
Scale (Virgo + GA only)	685 pc/arcsec = 0.685 kpc/arcsec = 41.12 kpc/arcmin = 2.47 Mpc/degree
Scale (Virgo + GA + Shapley)	683 pc/arcsec = 0.683 kpc/arcsec = 40.98 kpc/arcmin = 2.46 Mpc/degree
Cosmology-Corrected Quantities [H₀ = km/sec/Mpc, Ω_matter = , Ω_vacuum = ]
[Redshift 0.034036 as corrected to the ]
Type	Values
Luminosity Distance	144 Mpc (m-M) = 35.78 mag
Angular-Size Distance	134 (m-M) = 35.64 mag
Co-Moving Radial Distance	139 (m-M) = 35.71 mag
Co-Moving Tangential Distance	139 (m-M) = 35.71 mag
Co-Moving Volume	0.0112 Gpc^3
Light Travel-Time	0.445 Gyr
Age at Redshift 0.034036	12.854 Gyr
Age of Universe	13.299 Gyr
Scale (Cosmology Corrected)	651 pc/arcsec = 0.651 kpc/arcsec = 39.05 kpc/arcmin = 2.34 Mpc/degree
Surface Brightness Dimming	Flux Density per Unit Area = 0.87469; Magnitude per Unit Area = 0.1454 mag

Measured Redshifts of ARP 070

Classifications for ARP 070

Photometry & SED for ARP 070

Quick-look Photometry & SED plot for ARP 070

Quick Look Photometry & Luminosities (brightest flux in each spectral region)	SED Plot

Photometry for ARP 070

Images for object ARP 070 (Arp 70)

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 ARP 070

External Resource Links for ARP 070

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