Stargazing guide
Stargazing in Pho Yen, Thai Nguyen, Vietnam
Pho Yen, Thai Nguyen, Vietnam has an estimated Bortle 4–5 sky (small city). The Milky Way core is highest after dark in April, at about 40°.
How dark the sky is around Pho Yen, Thai Nguyen, Vietnam, the nearest certified dark-sky places, when the Milky Way core is visible, and the next dark New Moon. Calculated for 21.42°, 105.89°.
Estimated sky glow
Milky Way core
Next New Moon
Dark-sky rating for Pho Yen
Pho Yen, Thai Nguyen, Vietnam is a small city (population about 231,363). A place this size typically has a rural to suburban transition: the Milky Way core can be glimpsed on clear, moonless nights. That is an estimate of Bortle class 4–5 from population, not a measurement: the real value depends on the exact spot you observe from.
For a measured reading at any point, open the live Dark Sky map.
Nearest dark-sky places and observatories
No certified dark-sky place or observatory in our registry lies within 150 km of Pho Yen. Our list only includes genuine, publicly documented sites, so none is shown rather than guessed.
Milky Way season in Pho Yen
The bright core of the Milky Way climbs high above the horizon haze. It climbs at least 20° above the horizon during astronomical darkness in February, March, April, May, June, July, August, September, October, peaking in April at about 40°.
- The north celestial pole stands 21.4° above the horizon, so stars within 21° of it never set from here.
- About 68.3% of the whole sky rises above the horizon at some point in the year from this latitude.
- The Milky Way's core in Sagittarius culminates about 39.6° up, clearing the horizon haze comfortably.
- At 22 m elevation, roughly 0% of the atmosphere's mass is already below you, which measurably reduces extinction near the horizon.
Tonight and aurora
As of October 18, 2026 (UTC) the Moon is a First Quarter at 49% illumination. Aurora at 21.4° latitude generally needs about Kp 9.0.
Nearby places
Stargazing in Pho Yen: common questions
Is Pho Yen a good place for stargazing?
Pho Yen, Thai Nguyen, Vietnam is a small city, so its typical sky is rural to suburban transition: the Milky Way core can be glimpsed on clear, moonless nights (an estimate of Bortle 4–5 from population, not a measurement). No certified dark-sky place or observatory in our registry lies within 150 km, so a dark site means driving away from the city's glow toward the darkest horizon you can reach.
When can you see the Milky Way from Pho Yen?
From Pho Yen, Thai Nguyen, Vietnam (21.42°, 105.89°) the Milky Way's bright core climbs at least 20° above the horizon during astronomical darkness in February, March, April, May, June, July, August, September, October. It peaks in April, reaching about 40°. Moonlight, cloud and city lights still decide what you actually see.
What is the best night this month for stargazing near Pho Yen?
The darkest nights fall around the New Moon. As of 2026-10-18 the Moon is a First Quarter at 49% illumination, and the next New Moon is November 9, 2026 (UTC). Pair it with a clear forecast and a site away from town lights.