UFOs in Kyiv?, and research paper
here.
Ukraine’s airspace has been busy this year—that’s the nature of war. But scientists in the country are looking to the skies and seeing something they didn’t expect: An inordinate number of UFOs, according to a new preprint paper published by Kyiv’s Main Astronomical Observatory in coordination with the country’s National Academy of Science.
https://www.vice.com/en/article/pkg3nb/ukraines-astronomers-say-there-are-tons-of-ufos-over-kyiv
Unidentified aerial phenomena I. Observations of events
B.E. Zhilyaev, V.N. Petukhov, V.M. Reshetnyk
Main Astronomical Observatory, NAS of Ukraine, Zabalotnoho 27, 03680, Kyiv, Ukraine
[email protected]
NASA commissioned a research team to study Unidentified Aerial Phenomena (UAP), observations
of events that cannot scientifically be identified as known natural phenomena. The Main Astronomical
Observatory of NAS of Ukraine conducts an independent study of UAP also. For UAP observations, we
used two meteor stations installed in Kyiv and in the Vinarivka village in the south of the Kyiv region.
Observations were performed with colour video cameras in the daytime sky. We have developed a special
observation technique, for detecting and evaluating UAP characteristics. According to our data, there are
two types of UAP, which we conventionally call: (1) Cosmics, and (2) Phantoms. We note that Cosmics
are luminous objects, brighter than the background of the sky. We call these ships names of birds (swift,
falcon, eagle). Phantoms are dark objects, with contrast from several to about 50 per cent. We present a
broad range of UAPs. We see them everywhere. We observe a significant number of objects whose nature
is not clear. Flights of single, group and squadrons of the ships were detected, moving at speeds from 3 to
15 degrees per second. Some bright objects exhibit regular brightness variability in the range of 10 - 20 Hz.
Two-site observations of UAPs at a base of 120 km with two synchronised cameras allowed the detection of
a variable object, at an altitude of 1170 km. It flashes for one hundredth of a second at an average of 20 Hz.
We use colourimetry methods to determine of distance to objects and evaluate their color characteristics.
Objects RGB colors of the Adobe color system had converted to the Johnson BVR astronomical color system
using the color corrections. Phantom shows the colur characteristics inherent in an object with zero albedos.
It is a completely black body that does not emit and absorbs all the radiation falling on it. We see an object
because it shields radiation due to Rayleigh scattering. An object contrast makes it possible to estimate the
distance using colorimetric methods. Phantoms are observed in the troposphere at distances up to 10 - 12
km. We estimate their size from 3 to 12 meters and speeds up to 15 km/s.
Key words: methods: observational; object: UAP; techniques: imaging
https://arxiv.org/pdf/2208.11215.pdf