ОПИСАНИЕ
Планетарий «Домашняя Звезда» проецирует до 10000 звезд на потолке или стенах. Установка может вращаться против часовой стрелки, имитируя небо в северном полушарии, и по часовой стрелке, соответственно, для южного полушария. Чтобы разнообразить картину звездного неба, можно включить функцию падающих звёзд – они будут пролетать через случайные промежутки времени. Имеется таймер на отключение. Для питания нужна электросеть.
Внимание! Планетарий работает только в полной темноте! В случае превышения расстояние до экрана, изображения звезд теряют четкость.
В КОМПЛЕКТ ВХОДИТ
Оптическая установка,
адаптер питания,
аудио компакт-диск,
инструкция.
ТРЕБУЕТ
Переходник No. 1 для адаптера питания.
РАЗМЕРЫ
Диаметр 20 см.
ВЕС
1 кг.
Планетарий «Домашняя Звезда» проецирует до 10000 звезд на потолке или стенах.
// www.podarini.ru
Независимый тест планетария.
Астроном, видимо, тестировал.
Пишет, что на первый взгляд планетарий похож на игрушку, но выводит 10000 звезд.
Сожалеет, что нет отдельной системы для проецирования планет.
“В отличие от обычного планетария, световой луч от проектора не половина сферы, а скорее в форме конуса. Это происходит потому, что Homestar в первую очередь предназначен для проецироваться на плоскую поверхность, такую как потолок у себя дома.”
”Personal opinion about the unit
The unit is surprisingly light and small. The first impression I had from the size was it just looked like a cheap toy. But the projected images were much more than I first guessed from the appearance of the unit. It is quite nice to be able to see some 10000 stars on my ceiling, which is more than you can see with your naked eye at either Peach Mountain or Lake Hudson. Unlike the conventional planetarium, the light ray from the projector is not a half sphere but rather shaped like a cone. This I believe is because Homestar is primarily designed to be projected onto a flat surface, like a ceiling at home. The light ray angle from north horizon to south horizon is probably about 90 degrees (I don’t have the exact number). Thus, the entire sky above horizon is projected in a disc. Constellations inevitably appear a little smaller than what you see under the real night sky. The lower the ceiling, the smaller the images seem to appear. Also, images get fuzzy and a little distorted near the horizon. The Milky Way is clearly seen, both in summer and winter sky. Images of stars for most constellations, especially near Zenith, are very clear. Stars appear brighter than actual ones. Especially, I feel that the faint stars are a little too bright. But maybe this is inherent in design. There is no color in the stars. They are all white.
Some large open clusters (M44, M45, Hyades, Coma Cluster, etc.) are visible. I have noticed some major non-stellar fuzzy objects like M8, M13, etc., are missing. I believe this is because the disc data is made by stellar data and do not have non-stellar objects.
The images get much nicer when a dome is used. At the July meeting, Norb Vance showed us his Homestar unit and projected images on a half sphere dome at the EMU astronomy department. Wow, it was so much nicer. I am quite impressed, and now planning on making a hemisphere dome for mine. The recommended projection distance, according to the manual, is 2.0~2.3 m (6.6~7.5 ft), but I found a much larger distance, like a 10~12 ft range, will still produce fairly descent image. The rotation function is nice, but I sometimes feel that it is too fast when you are observing, and it is too slow when you want to go from winter sky to summer sky. The auto-off timer comes handy, since I often use it when going to bed. The shooting star function at first appeared nice, but after a while I am not too crazy about it, because the pattern is always the same, just timing is different.
Overall, I like the unit very much. I think it is well worth the money I spent. It has been a good tool to learn constellations and enjoy star gazing especially on cloudy Michigan nights.”