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.
Milky Way core visibility in New Hampshire by month
| Month | Core visible (15th) | Hours | Max altitude | Direction |
|---|---|---|---|---|
| January | — | — | -4° | — |
| February | — | — | 8° | — |
| March | 4:39 AM – 5:19 AM | 0.7 | 14° | SSE → SSE |
| April | 2:34 AM – 4:14 AM | 1.7 | 17° | SSE → S |
| May | 12:39 AM – 3:09 AM | 2.5 | 17° | SSE → S |
| June | 10:54 PM – 2:34 AM | 3.7 | 17° | SSE → SSW |
| July | 10:41 PM – 1:21 AM | 2.7 | 17° | S → SSW |
| August | 9:44 PM – 11:14 PM | 1.5 | 16° | S → SSW |
| September | 8:37 PM – 9:17 PM | 0.7 | 13° | 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)
| Date | Time | Milky Way |
|---|---|---|
| Mon, Nov 09, 2026 | 2:02 AM | Core below horizon at night |
| Tue, Dec 08, 2026 | 7:52 PM | Core below horizon at night |
| Thu, Jan 07, 2027 | 3:24 PM | Core below horizon at night |
| Sat, Feb 06, 2027 | 10:56 AM | Core below horizon at night |
| Mon, Mar 08, 2027 | 4:29 AM | Core season |
| Tue, Apr 06, 2027 | 7:51 PM | Core season |
| Thu, May 06, 2027 | 6:58 AM | Core season |
| Fri, Jun 04, 2027 | 3:40 PM | Core season |
| Sat, Jul 03, 2027 | 11:02 PM | Core season |
| Mon, Aug 02, 2027 | 6:05 AM | Core season |
| Tue, Aug 31, 2027 | 1:41 PM | Core season |
| Wed, Sep 29, 2027 | 10:36 PM | Core season |
| Fri, Oct 29, 2027 | 9:36 AM | Core 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
| Location | Type | County | Est. Bortle | Zenith mag/arcsec² |
|---|---|---|---|---|
| Dixville Notch State Park | State Park | Coos County | 2 | 21.87 |
| Coleman State Park | State Park | Coos County | 2 | 21.88 |
| Mollidgewock State Park | State Park | Coos County | 2 | 21.83 |
| Umbagog Lake State Park | State Park | Coos County | 2 | 21.82 |
| Mount Washington State Park | State Park | Coos County | 3 | 21.67 |
| Franconia Notch State Park | State Park | Grafton County | 3 | 21.57 |
| Echo Lake-Cathedral Ledge State Park | State Park | Carroll County | 3 | 21.60 |
| Crawford Notch State Park | State Park | Carroll County | 3 | 21.65 |
| Hancock Overlook | Scenic Viewpoint | Grafton County | 3 | 21.60 |
| Jackman Brook Overlook | Scenic Viewpoint | Grafton County | 3 | 21.59 |
| Pemi Overlook | Scenic Viewpoint | Grafton County | 3 | 21.60 |
| Sugar Hill Overlook | Scenic Viewpoint | Grafton County | 3 | 21.58 |
| Cardigan Mountain State Park | State Park | Grafton County | 3 | 21.39 |
| Wellington State Park | State Park | Grafton County | 3 | 21.39 |
| Moose Brook State Park | State Park | Coos County | 3 | 21.33 |
| Umbagog National Wildlife Refuge | National Wildlife Refuge | Coos County | 2 | 21.85 |
| Umbagog Lake | Lake | Coos County | 2 | 21.84 |
| Christine Lake | Lake | Coos County | 2 | 21.77 |
| Success Pond | Lake | Coos County | 2 | 21.71 |
| White Mountain National Forest | National Forest | Grafton County | 3 | 21.63 |
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)
| Sensor | Lens | Aperture | NPF max shutter | 500 rule |
|---|---|---|---|---|
| Full frame (35 mm) | 14 mm | f/2.8 | 19.6 s | 36 s |
| Full frame (35 mm) | 20 mm | f/2.8 | 13.8 s | 25 s |
| Full frame (35 mm) | 24 mm | f/2.8 | 11.5 s | 21 s |
| APS-C (Nikon, Sony, Fujifilm, Pentax) | 14 mm | f/2.8 | 15.4 s | 23 s |
| APS-C (Nikon, Sony, Fujifilm, Pentax) | 20 mm | f/2.8 | 10.8 s | 16 s |
| APS-C (Nikon, Sony, Fujifilm, Pentax) | 24 mm | f/2.8 | 9.0 s | 14 s |
| Micro Four Thirds | 14 mm | f/2.8 | 14.1 s | 18 s |
| Micro Four Thirds | 20 mm | f/2.8 | 9.8 s | 12 s |
| Micro Four Thirds | 24 mm | f/2.8 | 8.2 s | 10 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.