Catalogue · 27 objects

Deep-sky targets for high latitudes

Galaxies, nebulae and clusters that climb well from Lapland, with the numbers we actually use when planning a night. The northern sky is our strength: anything near Cassiopeia, the Plough or Camelopardalis passes close to the zenith. The south is not — the summer Milky Way core never rises at all.

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The list

Click a column heading to sort. The filter searches every column, so try a constellation, a type or a month.

27 objects

Maximum altitude is the height above the horizon when the object crosses the meridian as seen from Sodankylä (67.4°N). Magnitudes are integrated visual magnitudes; extended objects look much fainter than a star of the same number. Best months assume real darkness, which at our latitude means mid-August to mid-April.
Our notes
M31Andromeda GalaxyGalaxyAndromeda3.463.9°Sep – JanA naked-eye smudge from any dark spot. Our first cooled-camera target; six hours brings out both companion galaxies.
M33Triangulum GalaxyGalaxyTriangulum5.753.3°Oct – DecLarge and low in surface brightness, so a real test of your sky. Pink HII regions appear after four hours or more.
M45PleiadesOpen clusterTaurus1.646.7°Oct – FebSeitsentähti in Finnish. The blue reflection nebula needs a dark sky and long integration; watch for halos round the bright stars.
M42Orion NebulaEmission nebulaOrion4.017.2°Jan – FebNever higher than 17° here. Shoot it as it crosses the meridian, around midnight in mid-January, and pray for transparency.
M1Crab NebulaSupernova remnantTaurus8.444.6°Nov – FebWhat is left of the supernova recorded in 1054. Small: it needs 500 mm of focal length or more.
M81Bode’s GalaxyGalaxyUrsa Major6.988.3°Dec – AprPasses within two degrees of the zenith. Frame it together with M82 at 400–600 mm.
M82Cigar GalaxyGalaxyUrsa Major8.487.7°Dec – AprA starburst galaxy: red hydrogen filaments stream out of the disc. A hydrogen-alpha filter helps a lot.
M101Pinwheel GalaxyGalaxyUrsa Major7.977.0°Feb – AprFace-on and faint. Our 11 h 40 min image from February 2026 is in the gallery.
M51Whirlpool GalaxyGalaxyCanes Venatici8.469.8°Feb – AprThe interacting pair is small; best at 800 mm or more. By late April the nights are already too short.
M97Owl NebulaPlanetary nebulaUrsa Major9.977.6°Feb – AprFrame it with the edge-on galaxy M108, 48 arcminutes away. Faint, so wait for a moonless week.
M3—Globular clusterCanes Venatici6.251.0°Mar – AprRoughly half a million stars. Keep subs short, around 60 s, so the core does not burn out.
M13Great Hercules ClusterGlobular clusterHercules5.859.1°Aug – SepOnly from mid-August, once the nights darken; by October it sinks into the evening twilight.
M57Ring NebulaPlanetary nebulaLyra8.855.6°Aug – OctTiny but bright. Two-second frames through the C8 freeze the seeing; stack a few hundred.
M27Dumbbell NebulaPlanetary nebulaVulpecula7.545.3°Aug – OctThe easiest planetary nebula of all. The faint outer halo needs several hours.
NGC 7000North America NebulaEmission nebulaCygnus4.066.9°Aug – OctHuge: fits a 250 mm frame together with the Pelican. Dual-band filters cope well with town light.
NGC 6960 / 6992Veil NebulaSupernova remnantCygnus7.053.3°Aug – OctFilaments from a star that exploded 10,000–20,000 years ago. Use a mosaic or a fast wide refractor.
NGC 869 / 884Double ClusterOpen clusterPerseus3.779.7°Sep – FebCircumpolar and bright: a forgiving first target for any lens from 135 mm upwards.
IC 1805Heart NebulaEmission nebulaCassiopeia6.584.1°Sep – JanNever sets. Pair it with the Soul Nebula in one frame at around 250 mm.
IC 1848Soul NebulaEmission nebulaCassiopeia6.583.0°Sep – JanNext to the Heart; the two together span about five degrees of sky.
NGC 7635Bubble NebulaEmission nebulaCassiopeia10.083.8°Sep – DecA shell blown by a single hot star. A long-focal-length target for the Esprit.
IC 434Horsehead NebulaEmission nebulaOrion7.320.1°Jan – FebOnly 20° up for us; we attempt it on the very best transparency nights and rarely win.
NGC 2244Rosette NebulaEmission nebulaMonoceros4.827.6°Jan – FebReaches 28°. A favourite for the dual-band filter during moonlit weeks.
NGC 891—GalaxyAndromeda9.965.0°Oct – DecAn edge-on spiral with a razor-sharp dust lane. Needs a dark sky and patience.
IC 342Hidden GalaxyGalaxyCamelopardalis9.189.3°Nov – MarDimmed by Milky Way dust, but it passes almost exactly overhead here, which helps enormously.
NGC 2403—GalaxyCamelopardalis8.988.2°Dec – MarAn underrated bright spiral, far north and very high from Lapland.
M35—Open clusterGemini5.346.9°Dec – FebLook for the small, much older cluster NGC 2158 just beside it.
M44Beehive ClusterOpen clusterCancer3.742.3°Jan – MarBetter in binoculars than in most telescopes. Fits a 200 mm frame nicely.
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How to read the numbers

Altitude

90° − |latitude − declination|

An object’s highest point in the sky depends only on your latitude and its declination. At 67.4°N, anything with a declination above +22.6° is circumpolar and never sets; anything below −22.6° never rises. Below about 25° of altitude the air gets thick and turbulent, so we treat that as our working floor.

Magnitude

Bigger means fainter

Each step of one magnitude is a factor of about 2.5 in brightness. For galaxies and nebulae the number is the total light spread over the whole object, so a large mag 6 galaxy like M33 can be harder to see than a compact mag 8 planetary nebula. Surface brightness is what really counts.

Months

Our season is upside down

Summer targets like Cygnus and Lyra are only available from mid-August, when darkness returns, until they sink into the evening in October. Spring galaxies have to be caught before mid-April. Winter is long, dark and cold, and it is when we image most.