The Milky Way core season from Guyana

Explainer · 0:42 · silent, with on-screen words

Where the Milky Way’s core is at 22:00 from Georgetown, Guyana, on each new-Moon night from February to October 2027, how long it is up in the dark, and what a full Moon does to it.

The video file (MP4, 1886 kB)

Shows Georgetown (6.80° N, 58.16° W), facing south at 22:00 GYT on the new-Moon night of each month from February to October 2027, and the full Moon of 18 June 2027.

Chapters

  1. 0:03 February to April: before dawn
  2. 0:13 May to July: all night
  3. 0:23 August to October: evenings only
  4. 0:33 The Moon

From the lesson Milky Way Photography from Guyana.

What the video shows, in words

A silent 45-second explainer drawn from the site’s own sky chart. It shows the Milky Way’s core (the galactic centre, in Sagittarius) from Georgetown, Guyana, facing south at 22:00 Guyana time on the new-Moon night of each month from February to October 2027, with the hours it stands 15° or more up in astronomical dark.

Sat 6 Feb: core below the horizon at 22:00; 15° or more up in the dark 03:55 to 04:55, 1.0 h; Mon 8 Mar: core below the horizon at 22:00; 15° or more up in the dark 02:00 to 04:50, 2.8 h; Tue 6 Apr: core below the horizon at 22:00; 15° or more up in the dark 00:05 to 04:35, 4.5 h; Thu 6 May: core 14° up at 22:00; 15° or more up in the dark 22:05 to 04:20, 6.3 h; Fri 4 Jun: core 36° up at 22:00; 15° or more up in the dark 20:10 to 04:20, 8.2 h; Sat 3 Jul: core 52° up at 22:00; 15° or more up in the dark 19:30 to 03:25, 7.9 h; Mon 2 Aug: core 51° up at 22:00; 15° or more up in the dark 19:25 to 01:30, 6.1 h; Wed 29 Sep: core 11° up at 22:00; 15° or more up in the dark 18:55 to 21:40, 2.8 h; Fri 29 Oct: core below the horizon at 22:00; 15° or more up in the dark 18:45 to 19:45, 1.0 h.

Full Moon, Fri 18 Jun: the core is 45° up at 22:00 and the Moon (100% lit) 45° up; of 8.8 h with the core up in the dark, 0.0 h are moonless.

Hours with the core 15° or more up in astronomical dark on the 15th of each month of 2027, Moon ignored: Jan 0.0, Feb 1.7, Mar 3.3, Apr 5.0, May 6.8, Jun 8.8, Jul 7.2, Aug 5.3, Sep 3.7, Oct 1.8, Nov 0.0, Dec 0.0. Computed with astronomy-engine for Georgetown (6.80° N, 58.16° W). The band is the galactic equator, drawn as a guide.

  1. 0:00 When can you see the Milky Way’s bright core from Guyana? Look south at 22:00 on each month’s darkest night.
  2. 0:03 In Feb the core is still below the horizon at 22:00; it climbs 15° up in the dark only from 03:55 to 04:55, before dawn.
  3. 0:13 By Jun it is 36° up at 22:00, and on Fri 4 Jun it stays 15° or more up for 8.2 h of dark: the heart of the season.
  4. 0:23 After July it slides west and sets earlier: in Oct it is gone by 19:45, soon after dark.
  5. 0:33 The Moon matters as much as the month: on Fri 18 Jun, a full Moon 45° up beside the core leaves 0.0 h of moonless core time out of 8.8 h.
  6. 0:39 Plan for a new Moon between May and July, and check each night’s window in the Milky Way Season Planner.

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