Check out the upcoming events and news from the Hokulani Imaginarium!

Starry Heavens Newsletter
May 2022

We hope to see you in May as we continue to relaunch the Imaginarium with several  favorite planetarium shows - Pink Floyd's Dark Side of the Moon 
is back Friday May 6, at 8:15p.m. Big Bird and Magic Treehouse-Space Mission are back Saturday, May 28. 

Totality also showing Friday May 6, at 7p.m. will  bring  you up to speed to appreciate the partial lunar eclipse in Hawaii that occurs mid-May.

May 15–16, 2022 Total Lunar Eclipse (Blood Moon)
The total phase of this Blood Moon total lunar eclipse will be visible from North and South America, Europe, Africa, and parts of Asia. However, in Hawaii we will only see a partial eclipse. Nevertheless, it is a special astronomical sighting and you can get ready to look for it after moonrise at 7:02p.m. May 15.
To learn even more about eclipses join us at the Imaginarium Friday May 6, 7:00p.m. for Totality – This program is all about eclipses – from lunar to total solar. We cover how they occur and what happens when they do. After seeing this show you will be ready when the partial eclipse happens in Hawaii.

What Is a Partial Lunar Eclipse?

A partial lunar eclipse occurs when the Earth moves between the Sun and Moon but the three celestial bodies do not form a straight line in space. When that happens, a small part of the Moon's surface is covered by the darkest, central part of the Earth's shadow, called the umbra. The rest of the Moon is covered by the outer part of the Earth's shadow called the penumbra.

Conditions for a Partial Lunar Eclipse

For a partial lunar eclipse to occur, two celestial events must happen at the same time:
  • A Full Moon.
  • The Sun, Earth, and Moon must be aligned in almost a straight line.

But Not Every Full Moon Night

Partial lunar eclipses do not happen every Full Moon night because of the inclination of the Moon's orbital plane. The Moon's orbital path around the Earth is inclined at an angle of 5° to the Earth's orbital plane (ecliptic) around the Sun. The points where the two orbital planes meet are called lunar nodes as shown in the image below.

Lunar eclipses occur when the Moon is near a node at Full Moon and solar eclipses take place when it is near a node at New Moon.Part of the Moon dips into the Earth's umbra during a partial lunar eclipse

Stages of a Partial Lunar Eclipse

  • Penumbral eclipse begins: The Earth's penumbra starts covering the Moon's surface.
  • Partial eclipse begins: The Earth's umbra starts moving over the Moon.
  • Maximum eclipse: The Earth's umbra covers the largest part of the Moon.
  • Partial eclipse ends: The Earth's umbra no longer covers the Moon.
  • Penumbral eclipse ends: The Earth no longer casts a shadow on the Moon. This marks the end of the eclipse.
Timeline When the Eclipse Happens Worldwide
Lunar eclipses can be visible from everywhere on the night side of the Earth, if the sky is clear. From some places the entire eclipse will be visible, while in other areas the Moon will rise or set during the eclipse.
The Moon is below the horizon in Honolulu some of the time, so that part of the eclipse will not be visible.
Event UTC Time Time in Honolulu* Visible in Honolulu
Penumbral Eclipse begins May 16 at 01:32:05 May 15 at 3:32:05 pm No, below the horizon
Partial Eclipse begins May 16 at 02:27:52 May 15 at 4:27:52 pm No, below the horizon
Full Eclipse begins May 16 at 03:29:03 May 15 at 5:29:03 pm No, below the horizon
Maximum Eclipse May 16 at 04:11:28 May 15 at 6:11:28 pm No, below the horizon
Full Eclipse ends May 16 at 04:53:55 May 15 at 6:53:55 pm No, below the horizon
Partial Eclipse begins in Hawaii   May 15 at 7:02 am Yes, moonrise
Max of Partial Eclipse   May 15 at 7:04 am Yes
Partial Eclipse ends May 16 at 05:55:07 May 15 at 7:55:07 pm Yes
Penumbral Eclipse ends May 16 at 06:50:49 May 15 at 8:50:49 pm Yes

The Very Merry Month Of May
And let us not forget May, that merriest of months is a cross-quarter day celebrated in song and poem.

According to the song and poem, the month of May is very merry for a number of reasons including its astronomical connection as a cross-quarter day. May Day or Beltane occurs on May 1 and refers to any of several public holidays. As a day of celebration the holiday has ancient origins related to many customs that have survived into modern times. Many of these customs are due to May Day being a cross-quarter day, meaning that (in the Northern Hemisphere, where it is almost exclusively celebrated), it falls approximately halfway between the spring equinox and summer solstice. May Day has its origins in pagan pre-Christian festivals related to agriculture and fertility, and its celebration involved joy and light-hearted fun in the outdoors as the warmer weather of spring and summer began.

May Day was a traditional summer holiday in many pre-Christian European pagan cultures with May 1 marking the first day of summer.  This meant that June 21 (back then June 25), which currently marks our first day of summer, was the middle of summer and thus was called Midsummer. Such early celebrations were connected to agriculture and involved gathering flowers and greenery, which were used as decorations. 

But in Hawaii May Day is Lei Day –
Here in Hawaii, Lei is not just an accessory. This element of Hawaiian culture even has its own holiday, a statewide celebration of the vital element of Hawaiian culture. The festivities begin in the morning on the 1st of May and continue throughout the day. Lei day was founded in 1929 to celebrate Hawaiian traditional craft of lei making. Each island of the Hawaiian archipelago has its own type of lei which makes it an essential element of ethnic identity and culture.
  • Reservations are recommended but no longer required.
  • Proof of  vaccination and a photo ID are no longer required.
  • Please call 808-235-7350 for reservations.
  • Better yet email
  • Payment will be made on the day of the show at the ticket booth.
  • No credit card payments are taken. CASH or CHECK ONLY
For information about  Imaginarium shows and events contact:
Manager, Dineene O‘Connor, at 808-235-7350 or                                                                                

Our admission prices are:
  • $8 General admission
  • $7 WCC students, military, seniors (65 years or older), with ID
  • $6 Children (ages 4-12 years)
  • Free for children under 4 years of age (1 per paying adult), and WCC faculty or staff with university ID
Please pick up and pay for tickets at the Imaginarium Box Office at least 15 minutes prior to showtime.

Please visit and LIKE our WCC Imaginarium Facebook Page.

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As always, we welcome your feedback or questions, feel free to phone (808) 235-7350 or email to If you would like information regarding our Adopt-a-Show sponsorship program please click here.

Dineene O'Connor
Manager, Hōkūlani Imaginarium
Windward Community College
Hale Imiloa 135A
Office (808) 235-7350

Totality and 
Losing the Dark
Friday, May 6,

Pink Floyd: Dark Side
of the Moon
Friday, May 6,

Stargazing with
Krissie Kellogg
Wednesday, May 11,

One World, One Sky:
Big Bird's Adventure
Saturday, May 28,

Magic Tree House
Saturday, May 28,
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