Table information for 'openngc.data'

General

Table Description: The OpenNGC object list with the main metadata

This table is available for ADQL queries and through the TAP endpoint.

Resource Description: OpenNGC is a database containing positions and main data of NGC (New General Catalogue) and IC (Index Catalogue) objects. It has been built by merging data from NED, HyperLEDA, SIMBAD, and several databases available at HEASARC. In this VO publication, we have changed most of the column names, mostly to make them work as ADQL column names without resorting to delimited identifiers. The mapping should be obvious.

For a list of all services and tables belonging to this table's resource, see Information on resource 'OpenNGC'

Citing this table

This table has an associated publication. If you use data from it, it may be appropriate to reference https://github.com/mattiaverga/OpenNGC either in addition to or instead of the service reference.

To cite the table as such, we suggest the following BibTeX entry:

@MISC{vo:openngc_data,
  year=2017,
  title={{OpenNGC}},
  author={Verga, M.},
  url={http://dc.zah.uni-heidelberg.de/tableinfo/openngc.data},
  howpublished={{VO} resource provided by the {GAVO} Data Center},
  doi = {10.21938/y.1ejWUD_MQ6b_eDFoVbbw}
}

Fields

Sorted by DB column index. [Sort alphabetically]

NameTable Head DescriptionUnitUCD
name Name Object identifier, either from NGC or from IC. N/A meta.id;meta.main
obj_type Type Object Type. See note for terms and symbols used. [Note t] N/A src.class
raj2000 RA J2000 Right Ascension in ICRS for Epoch J2000.0. deg pos.eq.ra;meta.main
dej2000 Dec J2000 Declination in ICRS for Epoch J2000.0. deg pos.eq.dec;meta.main
constellation Const. Constellation the object is located in. N/A meta.id.parent
maj_ax_deg Maj. Ax. Major axis of covering ellipsoid. deg phys.angSize.sMajAxis
min_ax_deg Min. Ax. Minor axis of covering ellipsoid. deg phys.angSize.sMinAxis
pos_ang Pos. Ang. Position angle of covering ellipsoid, north over east. deg pos.posAng
mag_b m_B Apparent total magnitude in the B Band. mag phot.mag;em.opt.B
mag_v m_V Apparent total magnitude in the V Band. mag phot.mag;em.opt.V
mag_j m_J Apparent total magnitude in the J Band. mag phot.mag;em.ir.J
mag_h m_H Apparent total magnitude in the H Band. mag phot.mag;em.ir.H
mag_k m_K Apparent total magnitude in the K Band. mag phot.mag;em.ir.K
surf_br_B Surf. Br. Mean surface brigthness within the 25 mag isophote (B-band); only given for galaxies mag/arcsec**2 phot.mag.sb
hubble_type Hubble Morphological Hubble type for galaxies. N/A src.morph.type
cstar_mag_u * m_U For planetary nebulae: Apparent magnitude of the central star in the U Band. mag phot.mag;em.opt.U
cstar_mag_b * m_B For planetary nebulae: Apparent magnitude of the central star in the B Band. mag phot.mag;em.opt.B
cstar_mag_v * m_V For planetary nebulae: Apparent magnitude of the central star in the V Band. mag phot.mag;em.opt.V
messier_nr Messier Messier number for this object N/A meta.id.cross
other_ngc Alt. NGC Other NGC number for this object in case it was duplicated in IC or NCG. N/A meta.id.cross
ic_cross IC Other IC number for this object in case it was duplicated in IC or NCG. N/A meta.id.cross
cstar_id C* name Identifier of the central star for planetary nebulae. N/A meta.id.cross
other_id ID Cross reference to other catalogs. N/A meta.id.cross
comname Common Common name(s) of the object. N/A N/A
ned_notes NED note Notes about the object exported from NED N/A meta.note
notes Notes Notes about the object from OpenNGC N/A meta.note

Columns that are parts of indices are marked like this.

Other

The following services may use the data contained in this table:

VOResource

VO nerds may sometimes need VOResource XML for this table.

Notes

Note t

The object type is encoded as follows:

* Star
** Double star
*Ass Association of stars
OCl Open Cluster
GCl Globular Cluster
Cl+N Star cluster + Nebula
G Galaxy
GPair Galaxy Pair
GTrpl Galaxy Triplet
GGroup Group of galaxies
PN Planetary Nebula
HII HII Ionized region
EmN Emission Nebula
Neb Nebula
RfN Reflection Nebula
SNR Supernova remnant
Nova Nova star
NonEx Nonexistent object

Copyright and such: