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Galaxy · Canes Venatici

Galaxie du Tournesol

A spiral galaxy 27 million light-years away, in Canes Venatici.

Galaxie du Tournesol, M63, longest exposure 2h 51
M63 · Galaxie du Tournesol 2h 51 · DwarfLab DWARF 3

Pierre Méchain discovered it in 1779. It is the first of the twenty-four objects he brought to Messier's catalogue. It is called flocculent: instead of two clean arms, it shows a multitude of broken arcs. That is where its nickname of the Sunflower comes from. It is faint, at magnitude 9.3, on a scale where the larger the number, the less the object shines. Its core comes quickly. The outer arcs take hours and a dark sky, and no filter will bring them out any sooner.

Source: NASA, catalogue Messier de Hubble, Messier 63. A figure wrong? Report it.

2h 51m 1 shot

0 towards 22h 12m · cumulative integration on this object

Temps d'intégration : the total exposure time, the sum of every exposure stacked on an object.

Designation
M63
Family
Galaxy
Constellation
Canes Venatici
Shots taken
1
Cumulative integration
2h 51
Filter
Astro
Place of capture
45.5° N 3.0° E
Instrument
DwarfLab DWARF 3

Every shot

The same object, several versions

2 versions of one and the same capture. A line under each says which: what comes out of the device, and what the app made of it. The exposure shown is that of this one night, it does not add up.

Galaxie du Tournesol, prise du 11 April 2026, 2h 51 de pose, avant correction

2h 51 11 April 2026

DwarfLab DWARF 3 · Astro · avant correction

Galaxie du Tournesol, prise du 11 April 2026, 2h 51 de pose, après correction par l'application

2h 51 11 April 2026

DwarfLab DWARF 3 · Astro · après correction par l'application

In the same family

Other galaxies in the catalogue

M31, Galaxie d'Andromède

M31 · Andromeda

Galaxie d'Andromède

17h 44m 3 shots

0 towards 22h 12m · cumulative integration on this object

Chaîne de Markarian

Chaîne de Markarian · Virgo and Coma Berenices

Chaîne de Markarian

3h 1 shot

0 towards 22h 12m · cumulative integration on this object

M101, Galaxie du Moulinet

M101 · Ursa Major

Galaxie du Moulinet

2h 40m 1 shot

0 towards 22h 12m · cumulative integration on this object

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