Markarian 421 (Q201968)

Einstein Slew survey, Version No. 1

1 reference

7C 110140.70+382847.00

Seventh Cambridge Survey

1 reference

6C 110140+382847

Sixth Cambridge Survey of radio sources

1 reference

NVSS J110427+381232

1 reference

2MASS J11042730+3812318

1 reference

AAVSO 1058+38

American Association of Variable Star Observers

1 reference

NVSS J110427+381231

1 reference

QSO B1101+384

Revised and Updated Catalog of Quasi-stellar Objects

1 reference

QSO J1104+3812

Revised and Updated Catalog of Quasi-stellar Objects

1 reference

QSO B1101+3828

Revised and Updated Catalog of Quasi-stellar Objects

1 reference

RBS 939

ROSAT All-Sky Survey Bright Source Catalogue

1 reference

UGC 6132

Uppsala General Catalogue

1 reference

Z 184-50

Catalogue of Galaxies and Clusters of Galaxies

1 reference

2MASX J11042732+3812320

Two Micron All-Sky Survey, Extended source catalogue

1 reference

The second Extreme Ultraviolet Explorer source catalog

1RXS J110427.1+381231

1 reference

2EUVE J1104+38.2

1 reference

EUVE J1104+38.1

The first Extreme Ultraviolet Explorer source catalog

1 reference

EUVE J1104+38.2

The first Extreme Ultraviolet Explorer source catalog

1 reference

FIRST J110427.3+381231

Faint Images of the Radio Sky at Twenty-Centimeters

1 reference

ICRF J110427.3+381231

International Celestial Reference Frame

1 reference

Z 1101.7+3828

Catalogue of Galaxies and Clusters of Galaxies

1 reference

UZC J110427.3+381232

Updated Zwicky Catalog

1 reference

SDSS J110427.31+381231.7

Sloan Digital Sky Survey

1 reference

PGC 33452

Principal Galaxies Catalogue

1 reference

LEDA 33452

Lyon-Meudon Extragalactic Database

1 reference

3FHL J1104.4+3812

3FHL: The Third Catalog of Hard Fermi-LAT Sources

1 reference

2A 1102+384

The Ariel V SSI catalogue of high galactic latitude (|b|>10) X-ray sources

1 reference

2EG J1104+3812

The second EGRET catalog of high-energy gamma-ray sources

1 reference

3A 1102+385

The Ariel V (3A) catalogue of X-ray sources - II. Sources at high galactic latitude ( b > 10 )

1 reference

3EG J1104+3809

The Third EGRET Catalog of High‐Energy Gamma‐Ray Sources

1 reference

AT 1112+400

The Ariel V sky survey of fast-transient X-ray sources

1 reference

B2 1101+38

A catalogue of 3235 radio sources at 408 MHz

1 reference

B2.3 1101+38

A catalogue of 3235 radio sources at 408 MHz

1 reference

B3 1101+384

Structures, spectral indexes, and optical identifications of radio sources selected from the B3 catalogue

1 reference

CJF B1101+384

A Complete Flux-Density--limited VLBI Survey of 293 Flat-Spectrum Radio Sources

1 reference

INTREF 438

High-energy sources before INTEGRAL. INTEGRAL reference catalog

1 reference

OHIO M 303

A High-Sensivity Survey of the North Polar Galactic Region at 1415 MHz

1 reference

PKS 1101+384

The Parkes catalogue of radio sources. Declination zone +20 to +27

1 reference

S4 1101+384

The 5-GHz strong source surveys. IV. Survey of the area between declination 35 and 70deg and summary of source counts, spectra and optical identifications

1 reference

S4 1101+38

The 5-GHz strong source surveys. IV. Survey of the area between declination 35 and 70deg and summary of source counts, spectra and optical identifications

1 reference

S4 1101+364

The 5-GHz strong source surveys. IV. Survey of the area between declination 35 and 70deg and summary of source counts, spectra and optical identifications

1 reference

RXTE all-sky slew survey. Catalog of X-ray sources at |b|>10{deg}

Gaia DR1 763335397827754112

1 reference

XSS J11045+3808

1 reference

B2 1101+384

A catalogue of 3235 radio sources at 408 MHz

1 reference

RX J1104.4+3812

X-ray survey of the Large Magellanic Cloud by ROSAT

1 reference

SHBL J110427.3+381231

The sedentary survey of extreme high energy peaked BL Lacs

1 reference

[ZEH2003] RX J1104.4+3812 1

The Hamburg/RASS Catalogue of optical identifications. Northern high-galactic latitude ROSAT Bright Source Catalogue X-ray sources

1 reference

CGRaBS J1104+3812

CGRaBS: An All‐Sky Survey of Gamma‐Ray Blazar Candidates

1 reference

[MGL2009] BZB J1104+3812

Roma-BZCAT: a multifrequency catalogue of blazars

1 reference

PBC J1104.4+3813

The Palermo Swift-BAT hard X-ray catalogue. II. Results after 39 months of sky survey

1 reference

2FGL J1104.4+3812

Fermi Large Area Telescope second source catalog

1 reference

GB6 J1104+3812

The GB6 catalog of radio sources

1 reference

GB6 B1101+3828

The GB6 catalog of radio sources

1 reference

WB 1101+3828

A new catalog of 30239 1.4 GHz sources

1 reference

3FGL J1104.4+3812

Fermi Large Area Telescope third source catalog

1 reference

2MAXI J1104+382

The 37 month MAXI/GSC source catalog of the high galactic-latitude sky

1 reference

ARGO J1105+3821

TeV GAMMA-RAY SURVEY OF THE NORTHERN SKY USING THE ARGO-YBJ DETECTOR

1 reference

2FHL J1104.4+3812

2FHL: the second catalog of hard Fermi-LAT sources

1 reference

Gaia DR2 763335402123160576

1 reference

0 references

0.031

4 references

The FIRST bright quasar survey. II. 60 nights and 1200 spectra later

Hard X-ray properties of blazars

The Hubble Space Telescope Survey of BL Lacertae Objects. II. Host Galaxies

Survey of instantaneous 1-22 GHz spectra of 550 compact extragalactic objects with declinations from $-30^\circ$ to $+43^\circ$

0.0303

1 reference

The revised GB/GB2 sample of extragalactic radio sources

0.0313

1 reference

The ROSAT AGN content of the 87GB 5 GHz survey: bulk properties of previously optically identified sources

0.0308

2 references

An update of the optical identification status of the S4 radio source catalogue

The First Caltech--Jodrell Bank VLBI Survey. I. lambda = 18 Centimeter Observations of 87 Sources

0.030021±0.00008

1 reference

Third Reference Catalogue of Bright Galaxies, Version 9

distance from Earth

500,000,000±1 light-year

0 references

127.17 megaparsec

1 reference

Groups of Galaxies in the Two Micron All Sky Redshift Survey

declination component of proper motion

0.048±0.058 milliarcsecond per year

1 reference

right ascension component of proper motion

0.007±0.048 milliarcsecond per year

1 reference

radial velocity

8,788.7±26.3 kilometre per second

1 reference

Hunting for supermassive black holes in nearby galaxies with the Hobby-Eberly telescope

9,000 kilometre per second

1 reference

Galaxy groups: a 2MASS catalog

8,887 kilometre per second

2 references

Groups of Galaxies in the Two Micron All Sky Redshift Survey

The CfA Redshift Survey: Data for the NGP +36 Zone

9,150 kilometre per second

1 reference

spectral class

DC

1 reference

The Palomar-Green catalog of ultraviolet-excess stellar objects

13.50

1 reference

A catalogue of quasars and active nuclei: 13th edition

12.90

V band

1 reference

A catalogue of quasars and active nuclei: 13th edition

8.31

R band

1 reference

CGRaBS: An All‐Sky Survey of Gamma‐Ray Blazar Candidates

12.8144±0.024

1 reference

11.091±0.021

1 reference

The Two Micron All Sky Survey (2MASS)

10.394±0.027

H band

1 reference

The Two Micron All Sky Survey (2MASS)

9.996±0.029

K band

1 reference

The Two Micron All Sky Survey (2MASS)

14.791±0.006

u' band

1 reference

13.804±0.002

g' band

1 reference

13.09±0.006

r' band

1 reference

12.805±0.005

i' band

1 reference

12.528±0.003

z' band

1 reference

1 reference

166.11380800423600 degree

1 reference

declination

38.20883286800790 degree

1 reference