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Sky-Tonight.com / Nebulae / M102
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Observation Settings

Or select it on the map:
This Earth map fragment is intended to illustrate celestial motion across the sky, emphasizing both bearing and elevational perspectives. The map's center point corresponds to the transit, showcasing celestial objects at their highest point, while elevation gradually decreases towards the map edges. This dynamic representation offers insights into the changing positions of celestial bodies with a focus on their bearing and elevational trajectories.
Your location: Santa Clara, United States
Timezone:
Latitude:
37.3541
Longitude:
-121.955

M102 Position and Visibility Tonight

M102

Where is M102 right now?

M102 is located in the constellation Draco. Although it is currently above the horizon at an altitude of 3 degrees, M102 is not visible because it is daytime.
Twilight begins at 19:25 local time, and at that moment, M102 will appear at an altitude of 58 degrees toward the northwest.

M102 Visibility on May 26

M102 is Not visible tonight

M102 Rise and Set Timetable

TimeElevation
M102 is always above the horizon
Moon Rise, 66% illuminated 13:1612°
Sunset18:1649°
Civil sunset18:4853°
Twighlight start19:2558°
Astrosession begin20:0664°
M102 is always above the horizon
M102 transit21:5872°
Moon Set01:0354°
Astrosession end02:0346°
Twighlight end02:4440°
Civil sunrise03:2135°
Sunrise03:5231°

Track M102 Position Throughout the Night

← Tue, 26 May 2026 →

Elevation (degrees)
Time
Altitude
Azimuth
Shift the map to change the time and observe M102 changing position in the night sky.

M102 - Spindle Galaxy

The Spindle Galaxy (M102) is a lenticular galaxy located in the constellation Draco. It was discovered by Pierre Méchain in 1781 and later cataloged by Charles Messier. M102 is known for its edge-on orientation and bright central bulge.

M102 spans about 85,000 light-years across and contains a massive population of stars, gas, and dust. The galaxy is approximately 50 million light-years away from Earth and has an apparent magnitude of 10.7, making it visible with a small telescope.

M102 Image Gallery

DSS Blue

M102 photo taken with blue filter
These images are valuable for highlighting the presence of younger, hotter stars, which emit more light in the blue wavelengths.

DSS Red

M102 photo taken with red filter
These images are excellent for detecting older, cooler stars, as well as emission nebulae, which glow primarily in the red due to hydrogen alpha emissions.

DSS Near-Infrared

M102 photo taken with Near-Infrared filter
These images can penetrate dust clouds that obscure visible light, revealing structures and objects hidden within.

DSS Composite image

M102 color image
DSS Color images are composite images created by combining the blue, red, and often near-infrared images to produce a full-color representation.

The photos are taken from the Digitized Sky Survey 2 (DSS2), which was produced at the Space Telescope Science Institute (STScI) under NASA contract, using data from the UK Science and Technology Facilities Council (STFC), the European Southern Observatory (ESO), and the National Geographic Society-Palomar Observatory Sky Survey (POSS II).

Special thanks to the National Optical Astronomy Observatory (NOAO), the Royal Observatory, Edinburgh, and the California Institute of Technology for their significant contributions.

Finder Chart for M102

Double-click to unlock the map.
Object nameM102
Field of view
Limiting magnitude
M102 coordinates15.10819, 55.76322
Center coordinates15.10819, 55.76322

M102 Passage Through Night

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Current position of M102

Time10:14
Latitude37.3541
Longitude-121.955
M102 elevation3°
M102 Azimuth-2°
Here you can see the current position of the M102 on the map, as well as its positions for rise and set. This tool allows you to track the M102's movement throughout the night, providing you with accurate and up-to-date information.

Annual motion of M102


M102 will be visible until November, 10, when it will move too close to the Sun. During this time, its proximity to the Sun will cause it to disappear from the night sky, making it unobservable for a while.
Time
DateTue, 26 May 2026
Twighlight start20:01
Twighlight end01:57
Twighlight duration6h 56m
RiseM102 is always up
SetM102 is always up
Elevation at transit72°
Transit time21:54
Equatorial coordinatesRA: 15h 06m 29s", Dec: 55° 45' 47s
Magnitude10
ConstellationDraco
The graph illustrates the annual visibility pattern of a M102, providing a comprehensive overview of its daily appearances and transit times throughout the year.
The graph is structured with the vertical axis showing the hours of the day, ranging from 12 AM to 12 AM the next day, while the horizontal axis spans each day of the year.
The reddish shaded area indicates the periods when the M102 is above the horizon, visible to observers. The white line marks the times when the celestial object reaches its highest point in the sky each day, known as the transit.
You can also view detailed visibility information in a dedicated table, including exact rise, transit, and set times for each date.

Astrometric & Physical Parameters of M102

Coordinates & Visibility

Right Ascension15.10819°
Declination55.76322°
Magnitude9.89
ConstellationDraco
Elevation3.2°
Azimuth-1.9°

Data Credits

The nebulae information on this page is sourced from the OpenNGC project, developed by Matteo Verga. OpenNGC provides detailed data on the NGC catalog, which is a valuable resource for exploring deep-sky objects such as nebulae.

For more details or to contribute to OpenNGC, visit the official GitHub repository: OpenNGC on GitHub.