NASA/IPAC  EXTRAGALACTIC  DATABASE

Advanced All-Sky Search For Objects By Parameters

Help | Comment | NED Home

Index of Constraint Types

arrow Tutorial Examples arrow Redshift arrow Photometric arrow Object Type
arrow Survey Name Prefix arrow Sky Area
arrow Output Format Specifications New VOTable (XML) and plain text (ASCII) options

Redshift Constraints

NOTE: If you use "Larger Than" or "Less Than" Constraint, please use only left box for the value.

Photometric Constraints

NOTE: If you use "Brighter Than" or "Fainter Than" Constraint, please use only left box for the value.
Flux density: in passband:
Radio ( >= 1 cm; <= 30 GHz)
        30 m (10 MHz)
       15 m (20 MHz)
       13 m (22 MHz)
       12 m (25 MHz)
       11 m (26 MHz)
       8 m (38 MHz)
       5 m (60 MHz)
       1.7 m (178 MHz)
       90 cm (325 MHz, P-band)
       82 cm (365 MHz)
       73 cm (408 MHz)
       64 cm (468 MHz)
 		 
40 cm (750 MHz)
36 cm (843 MHz)
31 cm (960 - 970 MHz)
21 cm (1.4 GHz)
20 cm (1.5 GHz)
11 cm (2.7 GHz)
6 cm (5 GHz)
3.7 cm (8.1 GHz)
3.5 cm (8.4 GHz)
2.8 cm (10 GHz)
2 cm (15 GHz)
1.3 cm (22 GHz. K-band)
Millimeter (1 cm > >= 1 mm; 30 GHz < <= 300 GHz)
        9.5 mm
       8.1 mm
       3.3 mm
       1.1 mm


Sub-Millimeter (1 mm > >= 300 µm; 300 GHz < <= 1 THz)
       SCUBA 850 µm
       SCUBA 450 µm
       SCUBA 350 µm
Infrared (300 µm > >= 1 µm; 1 THz < <= 300 THz)
        IRAS 100 µm
       IRAS 60 µm
       IRAS 25 µm
       ISOCAM 15 µm
       IRAS 12 µm
       N [CIT,Johnson] (10.60 µm)
       ISOCAM 6.7 µm
       M [CIT,Johnson] (4.803 µm)
       L [ESO] (3.774 µm)
       L' [UKIRT] (3.769 µm)
       L [Johnson] (3.542 µm)
       L [CIT] (3.501 µm)
 		       K [Johnson] (2.222 µm)
       K [CIT] (2.206 µm)
       K [ESO,UKIRT] (2.19 µm)
       Ks [2MASS] (2.159 µm)
       H [2MASS,CIT] (1.662 µm)
       H [ESO,UKIRT] (1.630 µm)
       H [Johnson] (1.604 µm)
       J [Johnson] (1.261 µm)
       J [2MASS,CIT,UKIRT] (1.24 µm)
       J [ESO] (1.124 µm)
Optical (10000 A > >= 3500 A; 300 THz < <= 860 THz)
       I [Johnson] (8798 Angstroms)
       HST WFPC2-F814W (7937 Angstroms)
       I [Cousins] (7910 Angstroms)
       R [Johnson] (6928 Angstroms)
       103a-E [POSS-I E] (6452 Angstroms)
       R [Cousins,ESO] (6410 Angstroms)
       HST WFPC2-F606W (5940 Angstroms)
       V [Cousins] (5505 Angstroms)
       V [Johnson] (5534 Angstroms)
       g [POSS II] (5155 Angstroms)
       m_J [SERC IIIa-J, APM] (4680 Angstroms)
       HST WFPC2-F450W (4525 Angstroms)
       103a-O [POSS-I O] (4050 Angstroms)
       B [Johnson,Cousins,ESO,m_p] (4400 Angstroms)
 		Ultraviolet (3500 A > >= 150 A; 8.6x1014 Hz < <= 2.0x1016 Hz; h: 4 - 83 eV)
       U [Johnson] (3663 Angstroms)
       U [Cousins] (3601 Angstroms)
       HST WFPC2-F300W (2941 Angstroms)
X-ray (150 A > >= 0.2 A; 2x1016 Hz < <= 1.5x1019 Hz; h: 83 eV - 62 keV)
       ROSAT WFC-S2 (0.06 - 0.11 keV)
       ROSAT WFC-S1 (0.08 - 0.19 keV)
       ROSAT-PSPC (0.05 - 2.5 keV)
       EINSTEIN-IPC (0.3 - 3.5 keV)
       ASCA (0.5 - 10 keV)
Gamma ray ( < 0.2 A; > 1.5x1019 Hz; h > 62 keV)
     COMPTON GRO EGRET (h: 0.1 - 5 GeV)

Selection by Object Type:

Include objects with ANY ALL of the following selected types:
Classified Extragalactic Objects:
 Components of Galaxies:
Unclassified Extragalactic Candidates:

Exclude objects with ANY of the following selected types:

Classified Extragalactic Objects:
 Components of Galaxies:
Unclassified Extragalactic Candidates:

Select one or more Name Prefixes from the lists below in order to:

Include objects associated with ANY or ALL of the selected prefixes:
Exclude objects associated with ANY of the selected prefixes: README
Exclude objects that have ONLY ONE NAME (NO CROSS-IDENTIFICATION) among the selected prefixes: