[Moon and Jupiter × Sauna] May 20th, the night of the Moon and Jupiter's approach. Astronomical observation event to enjoy early summer's "starry sky open-air bathing" at "Ofuro Cafe Karinnoyu"
Ofuro Cafe Karinnoyu, operated by The Farm Co., Ltd., will hold an astronomical observation event on May 20, 2026, to enjoy the approach of the Moon and Jupiter. It proposes a new bathing experience called "starry sky open-air bathing," where guests can enjoy stargazing with a telescope after warming up in the hot springs and sauna, with staff support for beginners.
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- 📰 Published: May 6, 2026 at 18:14
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Ofuro Cafe Karinnoyu, operated by The Farm Co., Ltd. (Location: Katori City, Chiba Prefecture), will hold an astronomical observation event on Wednesday, May 20, 2026, to enjoy the approach of the Moon and Jupiter.
Wednesday, May 20, 2026, is the day when the Moon and Jupiter will appear close together in the western sky after sunset. According to the National Astronomical Observatory of Japan, on the 20th, the Moon, slightly fuller than the previous day's crescent, will approach Jupiter, which shines at magnitude -1.9, allowing observers to enjoy the sight of the Moon and Jupiter aligned.
On the day of the event, Vixen's astronomical telescope "Porta II A80Mf" will be set up in the co-ed sauna garden, and with staff support, anyone can easily enjoy the observation.
Warm your body in the hot springs and sauna, and after reaching a state of deep relaxation, look up at the sky while feeling the early summer night breeze. The time spent gazing at the night sky where the Moon and Jupiter are close together through a telescope is a unique "starry sky open-air bathing" experience only available at Karinnoyu.
It's not just about soaking in the hot water; it's about savoring the tranquility of nature and the beauty of the night sky. We propose a new bathing experience that combines hot springs, sauna, and the night sky.
[Moon and Jupiter Approach Astronomical Observation Event] Overview
Date and Time: Wednesday, May 20, 2026, 19:00 - 20:45
Venue: Ofuro Cafe Karinnoyu Sauna Garden
Participation Method: Free (no reservation required)
Participation Fee: Free (admission fee separate)
Observation Method: Telescopes will be guided in order / Staff support available
Remarks: The event may be canceled or its content changed due to weather conditions / It may feel chilly at night, so bringing a light jacket is recommended.
[Ofuro Cafe Karinnoyu] Official HP
May 20 (Wed) Astronomical observation event to enjoy the Moon and Jupiter
https://www.thefarm.jp/karinnoyu/news/2115/
The night sky of May 20th, with the Moon and Jupiter close together
The theme of this observation is the "approach of the Moon and Jupiter."
Wednesday, May 20th, is the day when the Moon and Jupiter will appear close together in the western sky after sunset. According to the National Astronomical Observatory of Japan, on the 20th, the Moon, slightly fuller than the previous day's crescent, will approach Jupiter, which shines at magnitude -1.9, allowing observers to enjoy the sight of the Moon and Jupiter aligned.
Source: National Astronomical Observatory of Japan "May 2026 Sky Information"
https://www.nao.ac.jp/astro/sky/2026/05-topics01.html
Because Jupiter shines brightly, even those unfamiliar with astronomical observation can easily find it as a bright, star-like light near the Moon. In addition to enjoying the alignment of the Moon and Jupiter with the naked eye, you can observe the Moon's craters and patterns more clearly with an astronomical telescope. With staff support, you can easily experience the Moon's expressions, which are hard to notice just by looking up at the sky, and the sensation of planets floating in the night sky.
Enjoy the early summer night sky with hot springs × astronomical observation
The sauna garden, with its open design creating a sense of spaciousness, allows you to feel the light and wind during the day and the expansive night sky at night. THE FARM is a farm resort surrounded by rich nature and tranquility. Although it is close to the city center, a calm starry sky spreads across the night.
Ofuro Cafe Karinnoyu is located within THE FARM farm resort.
This place in Katori City, Chiba Prefecture, is about 90 minutes from the city center, yet it offers an environment where you can escape the hustle and bustle and surrender to the tranquility of nature.
Warm up thoroughly in the natural hot springs and sauna, regulate your breathing with open-air bathing, and then look up at the night sky. This time, beyond the state of "totonoi," is a unique way to enjoy Karinnoyu. We offer a special moment where you can savor the space to face the early summer night sky.
Astronomical telescope that even beginners can easily enjoy
Vixen's astronomical telescope (Porta II A80Mf) will be set up at the venue, and staff will support the observation.
Since the content prioritizes "easy enjoyment for first-timers" rather than a full-fledged astronomy lecture, even those new to astronomical observation or families with children can participate with peace of mind.
Not just looking up at the night sky. Karinnoyu's proposed new bathing experience
Warm your body to the core in natural hot springs drawn from 1,500m underground. The beautiful skin hot spring is rich in metasilicic acid and highly moisturizing.
This season, when the warmth of the day lingers and the night breeze feels pleasant, is an even more enjoyable time for open-air bathing. We offer an experience where you warm your body in natural hot springs, sweat in the sauna, take deep breaths in the sauna garden while feeling the night breeze, and then gaze at the early summer night sky where the Moon and Jupiter are close together through a telescope.
Astronomical observation can feel a bit daunting, with thoughts like "telescopes seem difficult" or "I don't know what to look at."
In this "Moon and Jupiter Approach" observation event, with staff support, you can easily observe the Moon and Jupiter with the astronomical telescope set up in the sauna garden.
Wednesday, May 20, 2026, is the day when the Moon and Jupiter will appear close together in the western sky after sunset. According to the National Astronomical Observatory of Japan, on the 20th, the Moon, slightly fuller than the previous day's crescent, will approach Jupiter, which shines at magnitude -1.9, allowing observers to enjoy the sight of the Moon and Jupiter aligned.
On the day of the event, Vixen's astronomical telescope "Porta II A80Mf" will be set up in the co-ed sauna garden, and with staff support, anyone can easily enjoy the observation.
Warm your body in the hot springs and sauna, and after reaching a state of deep relaxation, look up at the sky while feeling the early summer night breeze. The time spent gazing at the night sky where the Moon and Jupiter are close together through a telescope is a unique "starry sky open-air bathing" experience only available at Karinnoyu.
It's not just about soaking in the hot water; it's about savoring the tranquility of nature and the beauty of the night sky. We propose a new bathing experience that combines hot springs, sauna, and the night sky.
[Moon and Jupiter Approach Astronomical Observation Event] Overview
Date and Time: Wednesday, May 20, 2026, 19:00 - 20:45
Venue: Ofuro Cafe Karinnoyu Sauna Garden
Participation Method: Free (no reservation required)
Participation Fee: Free (admission fee separate)
Observation Method: Telescopes will be guided in order / Staff support available
Remarks: The event may be canceled or its content changed due to weather conditions / It may feel chilly at night, so bringing a light jacket is recommended.
[Ofuro Cafe Karinnoyu] Official HP
May 20 (Wed) Astronomical observation event to enjoy the Moon and Jupiter
https://www.thefarm.jp/karinnoyu/news/2115/
The night sky of May 20th, with the Moon and Jupiter close together
The theme of this observation is the "approach of the Moon and Jupiter."
Wednesday, May 20th, is the day when the Moon and Jupiter will appear close together in the western sky after sunset. According to the National Astronomical Observatory of Japan, on the 20th, the Moon, slightly fuller than the previous day's crescent, will approach Jupiter, which shines at magnitude -1.9, allowing observers to enjoy the sight of the Moon and Jupiter aligned.
Source: National Astronomical Observatory of Japan "May 2026 Sky Information"
https://www.nao.ac.jp/astro/sky/2026/05-topics01.html
Because Jupiter shines brightly, even those unfamiliar with astronomical observation can easily find it as a bright, star-like light near the Moon. In addition to enjoying the alignment of the Moon and Jupiter with the naked eye, you can observe the Moon's craters and patterns more clearly with an astronomical telescope. With staff support, you can easily experience the Moon's expressions, which are hard to notice just by looking up at the sky, and the sensation of planets floating in the night sky.
Enjoy the early summer night sky with hot springs × astronomical observation
The sauna garden, with its open design creating a sense of spaciousness, allows you to feel the light and wind during the day and the expansive night sky at night. THE FARM is a farm resort surrounded by rich nature and tranquility. Although it is close to the city center, a calm starry sky spreads across the night.
Ofuro Cafe Karinnoyu is located within THE FARM farm resort.
This place in Katori City, Chiba Prefecture, is about 90 minutes from the city center, yet it offers an environment where you can escape the hustle and bustle and surrender to the tranquility of nature.
Warm up thoroughly in the natural hot springs and sauna, regulate your breathing with open-air bathing, and then look up at the night sky. This time, beyond the state of "totonoi," is a unique way to enjoy Karinnoyu. We offer a special moment where you can savor the space to face the early summer night sky.
Astronomical telescope that even beginners can easily enjoy
Vixen's astronomical telescope (Porta II A80Mf) will be set up at the venue, and staff will support the observation.
Since the content prioritizes "easy enjoyment for first-timers" rather than a full-fledged astronomy lecture, even those new to astronomical observation or families with children can participate with peace of mind.
Not just looking up at the night sky. Karinnoyu's proposed new bathing experience
Warm your body to the core in natural hot springs drawn from 1,500m underground. The beautiful skin hot spring is rich in metasilicic acid and highly moisturizing.
This season, when the warmth of the day lingers and the night breeze feels pleasant, is an even more enjoyable time for open-air bathing. We offer an experience where you warm your body in natural hot springs, sweat in the sauna, take deep breaths in the sauna garden while feeling the night breeze, and then gaze at the early summer night sky where the Moon and Jupiter are close together through a telescope.
Astronomical observation can feel a bit daunting, with thoughts like "telescopes seem difficult" or "I don't know what to look at."
In this "Moon and Jupiter Approach" observation event, with staff support, you can easily observe the Moon and Jupiter with the astronomical telescope set up in the sauna garden.