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Milky Way in New Hampshire

Core season, new moons and the darkest locations

  • Season Mar–Sep

From central New Hampshire the Milky Way's galactic core is visible in true darkness from March to September, with the longest viewing window in June. Below: monthly times, the next new moons, and the darkest photo locations in New Hampshire ranked by our light-pollution model.

Core season
Mar–Sep
Best month
June
3.7 h window
Max core altitude
17°
above southern horizon
Dark locations
132
Bortle 1–3 (est.)

Milky Way core visibility in New Hampshire by month

MonthCore visible (15th)HoursMax altitudeDirection
January——-4°—
February——8°—
March4:39 AM – 5:19 AM0.714°SSE → SSE
April2:34 AM – 4:14 AM1.717°SSE → S
May12:39 AM – 3:09 AM2.517°SSE → S
June10:54 PM – 2:34 AM3.717°SSE → SSW
July10:41 PM – 1:21 AM2.717°S → SSW
August9:44 PM – 11:14 PM1.516°S → SSW
September8:37 PM – 9:17 PM0.713°SSW → SSW
October——8°—
November——-2°—
December——-19°—

Computed for central New Hampshire (43.86, -71.52) — core at least 10° high during astronomical darkness. Northern parts of the state see it lower and for less time.

Next new moons (darkest nights)

DateTimeMilky Way
Mon, Nov 09, 20262:02 AMCore below horizon at night
Tue, Dec 08, 20267:52 PMCore below horizon at night
Thu, Jan 07, 20273:24 PMCore below horizon at night
Sat, Feb 06, 202710:56 AMCore below horizon at night
Mon, Mar 08, 20274:29 AMCore season
Tue, Apr 06, 20277:51 PMCore season
Thu, May 06, 20276:58 AMCore season
Fri, Jun 04, 20273:40 PMCore season
Sat, Jul 03, 202711:02 PMCore season
Mon, Aug 02, 20276:05 AMCore season
Tue, Aug 31, 20271:41 PMCore season
Wed, Sep 29, 202710:36 PMCore season
Fri, Oct 29, 20279:36 AMCore below horizon at night

New moon times from the U.S. Naval Observatory, converted to local time. The 3–4 nights either side are also dark in the evening or morning.

Darkest photo locations in New Hampshire

LocationTypeCountyEst. BortleZenith mag/arcsec²
Dixville Notch State ParkState ParkCoos County221.87
Coleman State ParkState ParkCoos County221.88
Mollidgewock State ParkState ParkCoos County221.83
Umbagog Lake State ParkState ParkCoos County221.82
Mount Washington State ParkState ParkCoos County321.67
Franconia Notch State ParkState ParkGrafton County321.57
Echo Lake-Cathedral Ledge State ParkState ParkCarroll County321.60
Crawford Notch State ParkState ParkCarroll County321.65
Hancock OverlookScenic ViewpointGrafton County321.60
Jackman Brook OverlookScenic ViewpointGrafton County321.59
Pemi OverlookScenic ViewpointGrafton County321.60
Sugar Hill OverlookScenic ViewpointGrafton County321.58
Cardigan Mountain State ParkState ParkGrafton County321.39
Wellington State ParkState ParkGrafton County321.39
Moose Brook State ParkState ParkCoos County321.33
Umbagog National Wildlife RefugeNational Wildlife RefugeCoos County221.85
Umbagog LakeLakeCoos County221.84
Christine LakeLakeCoos County221.77
Success PondLakeCoos County221.71
White Mountain National ForestNational ForestGrafton County321.63

Sky brightness is modeled from nearby town populations (Walker's law); terrain, altitude and local lighting can make real skies better or worse.

Starting exposure for sharp stars (NPF rule)

SensorLensApertureNPF max shutter500 rule
Full frame (35 mm)14 mmf/2.819.6 s36 s
Full frame (35 mm)20 mmf/2.813.8 s25 s
Full frame (35 mm)24 mmf/2.811.5 s21 s
APS-C (Nikon, Sony, Fujifilm, Pentax)14 mmf/2.815.4 s23 s
APS-C (Nikon, Sony, Fujifilm, Pentax)20 mmf/2.810.8 s16 s
APS-C (Nikon, Sony, Fujifilm, Pentax)24 mmf/2.89.0 s14 s
Micro Four Thirds14 mmf/2.814.1 s18 s
Micro Four Thirds20 mmf/2.89.8 s12 s
Micro Four Thirds24 mmf/2.88.2 s10 s

NPF = (35 × f-number + 30 × pixel pitch) ÷ focal length, using typical pixel pitch per format (24 MP FF, 24–26 MP APS-C, 20 MP MFT). Fine-tune for your camera with the NPF calculator.

Tips for Milky Way photography

  • Shoot within a few days of the new moon, or after moonset / before moonrise.
  • Use ISO 3200–6400 on modern full-frame sensors, f/1.8–f/2.8, and the NPF shutter time.
  • Focus manually on a bright star with live view magnified, then lock the focus ring.
  • Shoot a blue-hour or low-ISO foreground frame from the same tripod position and blend it later.
  • Stack 10–20 frames to reduce noise, or use a star tracker for longer exposures.
  • Check the darkest-location table above, then confirm the view to the south on the location's sun-path diagram.

FAQ

When is Milky Way season in New Hampshire?
From about March to September the core is above the horizon during darkness; June gives the longest window.
Where is the best place to see the Milky Way in New Hampshire?
What time is the Milky Way visible tonight?
Use the Milky Way planner with your location for exact rise, transit and dark-window times.