NGC 6670

GALAXYGalaxy triplet

ILLUSTRATION FROM MAJOR AXIS 1.2′

[

OVERVIEW

] GALAXY

NGC 6670 is a galaxy triplet in the constellation Draco. It is catalogued as IRAS 18329+5950, IRAS F18329+5950 and MCG +10-26-044, among 5 designations in total. It was discovered in 1886.

WHAT IT IS
Galaxy triplet
HOW BIG ON THE SKY
1.2

Small enough that the full Moon would cover it several times over.

WHERE TO LOOK
Draco

The patch of sky it sits in, as seen from Earth.

[

OBSERVING

] FROM WHERE YOU ARE

What it takes to see NGC 6670 for yourself. Everything in this part of the page is worked out for a real horizon, a real night and the equipment you say you have.

TONIGHT

Say where you are, and this line says when NGC 6670 is worth going out for.

[

THROUGH AN EYEPIECE

] 150 MM TELESCOPE · 25 MM EYEPIECE
NE
FIELD 1.08°

NGC 6670 covers 1.2′ of sky against a of 1.08°, so at 48× it is a speck in a wide field.

48×
1.08
1.25
13.0
SIZE ON THE SKY
1.2
FILLS OF THE FIELD
2% of the width

NGC 6670 is not a point of light, so the limit above is the wrong one to hold it against: the same brightness spread over 1.2′ of sky is harder than a star of it, and goes first. Catalogued sizes are measured to a photographic contour, and the part an eye sees is usually smaller.

FIND IT ON THE SKY MAP ↗
[

APPARENT PLACE

] EQUINOX J2026.7

Where a telescope has to be pointed today, which is not quite where the catalogue records the object: the coordinate grid itself has turned since the year 2000 the catalogue is referred to.

RIGHT ASCENSION
DECLINATION
GRID TURNED SINCE
2.9
PROPER MOTION SINCE
none published

Computed for 2026-08-27 00:00 UT. No proper motion is published for NGC 6670, so nothing here moves the object; what separates this from the catalogued position above is the coordinate grid turning under it — about fifty arcseconds a year of precession since 2000, and the small nodding of the Earth’s axis on top of that. Aberration and refraction are not included, and neither is parallax; each is under an arcminute, which is also about as well as the catalogued position is known. The same figure for any date.

[

CATALOG DATA

] 5 FIELDS

The raw catalogue values, as the source published them, with the error bars where one was published — sorted by what each set of figures is about rather than by the order they happened to be stored in.

WHERE IT IS AND HOW IT MOVES

Position, motion across the sky and the size it covers on it. These are measurements of the object as seen from here, so every one of them depends on where here is.

Major axis
1.2

WHEN IT WAS FOUND

Who first saw it, from where, and by what method.

Discovered by
Lewis A. Swift

OTHER NAMES AND NUMBERS

The identifiers other catalogues file this object under, for anyone joining this data to theirs.

OpenNGC type code
GTrpl
Wikidata item
Q1960556
Wikipedia article
NGC 6670
[

ALSO KNOWN AS

] 5 DESIGNATIONS
  • IRAS IRAS 18329+5950
  • IRAS IRAS F18329+5950
  • MCG MCG +10-26-044
  • NGC NGC 6670
  • UGC UGC 11284
[

LOOK IT UP ELSEWHERE

] 4 SERVICES

Each link carries the identifier printed beside it. Nothing on this page is a measurement of our own, so a number that disagrees with one of these is worth reporting — and a service that has never catalogued this object under this name will say so plainly.

[

CITE THIS PAGE

] DR1

This page is live and its numbers move when an upstream refreshes, so the citation names the release the rows belong to rather than the day you read them. The release itself is frozen, republished as a bundle, and is what a data-availability statement should point at.

PLAIN TEXT
SpaceCatalog. NGC 6670 [catalogue entry]. Data release DR1 (2026-08-21). https://spacecatalog.org/object/ngc-6670
BIBTEX
@misc{spacecatalog_ngc-6670,
  author       = {{SpaceCatalog}},
  title        = {{NGC 6670}},
  howpublished = {SpaceCatalog, data release DR1 (2026-08-21)},
  year         = {2026},
  url          = {https://spacecatalog.org/object/ngc-6670},
  note         = {Catalogue entry, data release DR1 (2026-08-21). Values from OpenNGC.}
}

The values above were taken from OpenNGC — CC-BY-SA-4.0. Citing this page does not replace citing that catalogue, and its licence is share-alike: the terms reach whatever you build from these rows.

[

RELATED OBJECTS

] 8 LINKED