Sky Tonight

Santa Clara, US
37.4°/-122°
GMT -9

⌕

☾

Sky-Tonight.com / Nebulae and Deep-Sky Objects / M102

M102 Position and Visibility Tonight

Where is M102 right now?

M102 is located in the constellation Draco. Although M102 is currently 24° above the horizon, it is not visible because it is daytime.
Twilight begins at 18:57 local time. At that moment, M102 will be 59° above the horizon toward the north-west.

M102 visibility on 2026-08-18

M102 Visible all night

M102 rise and set timetable

	Time	Elevation
M102 is always above the horizon
Moonrise, 21% illuminated	09:49	25°
M102 transit	16:28	72°
Sunset	17:55	66°
Civil sunset	18:24	63°
Twilight start	18:57	59°
Astronomical observing session begins	19:32	54°
M102 is always above the horizon
Moonset	20:26	47°
Astronomical observing session ends	02:51	5°
Twilight end	03:26	4°
Civil sunrise	03:59	3°
Sunrise	04:28	3°

Track M102 Position Throughout the Night

← 18 August 2026 →

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

Blue images highlight younger, hotter stars that emit strongly at blue wavelengths.

DSS Red

Red images reveal older, cooler stars and emission nebulae glowing strongly in hydrogen-alpha light.

DSS Near-Infrared

Near-infrared images penetrate dust that obscures visible light and reveal hidden structures.

DSS Composite Image

DSS color images combine blue, red and often near-infrared exposures into a composite view.

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

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

Finder Chart for M102

Double-click to unlock the map.

Object name	M102
Field of view
Limiting magnitude
M102 coordinates	15.10819, 55.76322
Center coordinates	15.10819, 55.76322

M102 Passage Through Night

Double-click to unlock the map.

Current position of M102

Time	09:37
Latitude	37.3541
Longitude	-121.955
Elevation	24°
Azimuth	37°

Here you can see the current position of M102 on the map, as well as its positions for rise and set. This tool lets you track its movement throughout the night with accurate, up-to-date information.

Annual motion of M102

M102 will be visible throughout the entire year. Its position changes by about 68°. Use the annual motion section to find when M102 reaches its highest elevation.

Date	Tue, 18 August 2026
Twilight start	19:28
Twilight end	02:44
Twilight duration	7h 17m
Rise	M102 is always up
Set	M102 is always up
Elevation at transit	72°
Transit time	16:24
Equatorial coordinates	RA: 15h 06m 29s", Dec: 55° 45' 47s
Magnitude	10
Constellation	Draco

The graph illustrates the annual visibility pattern of M102, including its daily appearances and transit times. The vertical axis shows the hours of the day and the horizontal axis spans the year. The reddish area marks when the object is above the horizon, while the white line marks its daily transit.
You can also view detailed visibility information in a table with exact rise, transit, and set times for each date.

Astrometric and Physical Parameters of M102

Coordinates and Visibility

Right Ascension	15.10819°
Declination	55.76322°
Magnitude	9.89
Constellation	Draco
Elevation	23.6°
Azimuth	36.7°

Data Credits

The deep-sky information on this page comes from the OpenNGC project developed by Matteo Verga. OpenNGC provides detailed catalog data for nebulae, galaxies, clusters and other deep-sky objects.

For details or contributions, visit the official repository: OpenNGC GitHub.

Observation Settings