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Observatory Stay

Ontake Kyukamura Central Lodge

Nagano / Otaki, Kiso, Japan. The Central Lodge third-floor observatory has a 600 mm reflector and a 200 mm refractor; independent telescope use is not established.

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Rooms and astronomy sessions are confirmed by the property. Stella does not show live inventory.

1 stay - Ready to save
Official booking link attached13 source linksSource review 2026-10-09Official booking website: reserve.489ban.net
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Official details

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Night Sky Experience

What the catalog describes, and what to arrange for your dates.

Program & schedule
Ordinary guest observing is advertised daily at 19:30 during its operating season. Tell reception by 18:00; confirm the intended date.
Equipment access
Official experience page specifies one 600 mm reflector and one 200 mm refractor. Maximum is 600/25.4 inches, rounded to 23.622. Count 2 records these documented instruments; models, mounts and any additional inventory are unknown.
Astronomy guide
Guide availability is not confirmed in this record.
Sky context
Sky class unavailable. No supported Bortle estimate is recorded.
Source review
2026-10-09. Read the source links and notes.

Arrange your night

Published guest terms; confirm the session and current details for your dates.

Guest access
Overnight guests. Guided telescope viewing.
Inclusion & fees
Listed as included with lodging; confirm the session for your dates. JPY 0 · per guest session · Overnight guests; ordinary observing session
Reservations
Request the session at reception. Reception request deadline: 18:00 local time.
Ages
Confirm age and child restrictions with the property.
Schedule
Ordinary guest observing is advertised daily at 19:30 during its operating season. Tell reception by 18:00; confirm the intended date.
Telescope season
Listed telescope months: Apr, May, Jun, Jul, Aug, Sep, Oct, Nov. Confirm the session for your dates. Outside these months, telescope viewing is unavailable. The experience page suspends observing December–March during the snowy period. These are access months, not best-sky months.
Weather alternatives
Rain, snow or other poor weather may cancel observing; no indoor replacement is promised.
Other restrictions
The maintenance notice ends March 2025. A newer operator annual report records later astronomy use, but does not guarantee a particular night. Astronomy age limits, duration and capacity are unlisted. Special astronomy tours/classes have separate arrangements.

Program terms reviewed 2026-10-09. Check property programme terms.

How Stella assesses astronomy stays
Photos & planning

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Stella uses approved property photos where available. When a stay does not yet have a rights-cleared photo, the card is clearly shown as a Stella guide image.

Illustrative night sky; property photograph unavailable for Ontake Kyukamura Central Lodge
Guide image

Stella night-sky guide

Generated for trip browsing while Stella waits for a rights-cleared property photo.

Sky program

Observatory Stay

scheduled program. Official experience page specifies one 600 mm reflector and one 200 mm refractor. Maximum is 600/25.4 inches, rounded to 23.622. Count 2 records these documented instruments; models, mounts and any additional inventory are unknown.

Map context

Nagano / Otaki, Kiso, Japan

35.8571deg N / 137.5416deg E. 3 nearby dark-sky places found in Stella.

Booking path

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Before you book

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Booking
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Last source review
2026-10-09
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Promising stay; confirm the sky program while booking.

The stay has direct evidence, but the exact telescope session, guide, or seasonal schedule may still vary.

  1. Ask whether the telescope or guided sky session runs on your travel dates.
  2. Confirm whether the program is included, paid, private, or weather-dependent.
  3. Keep one backup stay or public dark-sky site in your Trip Board.

Ask before booking

  • Is the telescope, observatory, or guide available on the exact nights you want?
  • Is the session private, shared, included, or booked as an add-on?
  • Can the property recommend a darker nearby site if the main deck is affected by lights?
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Booking & source links

13 website links attached for trip planning.

Details linked13 source links

Equipment & stay notes

Telescope setup
Official experience page specifies one 600 mm reflector and one 200 mm refractor. Maximum is 600/25.4 inches, rounded to 23.622. Count 2 records these documented instruments; models, mounts and any additional inventory are unknown.
Astronomy guide
Ask the property
Category
Observatory Stay
Stay style
stella prime

Good to know

Booking status
Check details
Sky estimate
Unavailable
Last source review
2026-10-09
Stella note
Estimated official-linked property pin. Newer operator report supports astronomy after the expired March 2025 maintenance notice. Free 19:30 guest sessions require reception notice by 18:00; Dec-Mar observing is suspended. Confirm your date.

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The sky during your stay

What you can expect overhead at Ontake Kyukamura Central Lodge through the year — Moon phases and eclipses are exact dates; the Milky Way and aurora are seasonal likelihoods. Pick a month to plan around it.

Dark window Milky Way Meteors Eclipse★ Listed months

July 2026

Within listed telescope season; confirm session. The experience page suspends observing December–March during the snowy period. These are access months, not best-sky months.

  • Darkest skies

    New Moon on Jul 14 — the best window for the Milky Way and faint objects.

  • Milky Way core — peak seasonseasonal

    The galactic core is high overhead and well placed here.

  • Delta Aquariids meteor showerlikely

    Peaks around Jul 30, up to ~25/hr. A steady southern-hemisphere favourite.

Next steps

Turn this stay into a field plan.

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Dark-sky parks & sites near here

Certified parks, reserves, and observing sites within reach of this stay.

  • 87 km · Dark-Sky Community · Bortle 6Minami-Rokuroshi
    View place →
  • 96 km · PlanetariumNagoya City Science Museum Planetarium
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  • 235 km · Dark-Sky Park · Bortle 3Kozushima Dark Sky Island
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On the map