An astronomical camera can record a moving mark without establishing how far away it was. That distinction lies at the centre of a Ukrainian UAP controversy published in 2022. Boris Zhilyaev, Volodymyr Petukhov and Volodymyr Reshetnyk reported rapidly moving bright and dark targets recorded from Kyiv and Vinarivka. Their numerical estimates attracted attention because they implied extraordinary speeds. The ensuing exchange concerned the measurements and their assumptions, rather than a recovered vehicle or an independently identified visitor.
Two stations and two descriptive labels
The researchers’ first paper describes stations about 120 kilometres apart, short exposures and rapid video recording. They call bright targets “Cosmics” and dark targets “Phantoms”. These are their working labels. The paper estimates distances to dark marks from their contrast against the daytime sky, using atmospheric scattering and assumptions about reflectivity. A separate bright target receives a two-station parallax estimate. Those are different measurement routes; the presence of two cameras does not establish that every dark mark was independently triangulated.
The first preprint was submitted on 23 August 2022 and revised on 16 September. These dates establish publication history. They should not be substituted for recording dates absent from particular examples. The public record also needs to distinguish the authors’ interpretation from the observatory’s institutional position.
What the observatory actually said
The Main Astronomical Observatory’s published council statement records discussion following an astrophysical seminar on 15 September 2022. It acknowledges original observations while rejecting the standard of processing and interpretation. Specific concerns include distance errors, missing dates, uncertainty over which events were simultaneous at both stations, and insufficient attention to familiar terrestrial or natural possibilities.
The council calls for critical treatment of models, errors and processing. It also asks that wording attributing the research to the observatory be replaced with wording identifying the authors as its investigators. This is substantive institutional disagreement, not approval of an extraordinary physical conclusion. Likewise, the papers’ introductory reference to NASA’s UAP initiative does not establish a NASA collaboration or endorsement.
Two technical reviews
In a linked review of distance estimation, S. G. Kravchuk examines the atmospheric model. His discussion considers scattering, viewing geometry and contributions to illumination. He argues that a potentially useful colour-based idea has been implemented incorrectly. This objection addresses the inference connecting recorded brightness to range; it does not supply a newly measured distance to each original target.
A second review by O. A. Veles, dated 12–18 September 2022, identifies several distinct instrumental questions. These concern angular scale, colour interpolation in a Bayer sensor, conversion between colour systems, motion blur, calibration, uncertainty and synchronization. He also challenges the paper’s camera terminology and the timing information needed to support very short flashes. Nearby windborne objects are offered as an alternative to the extraordinary interpretation, rather than as positively identified specimens.
These criticisms should be kept separate. A challenge to an atmospheric calculation, a question about sampling, and an identification of a particular object would be different results. The reviews do not become a catalogue of solved targets merely because they offer ordinary alternatives. Nor does a recorded unexplained mark become an extraordinary craft merely because one suggested alternative remains untested.
Loeb’s physical constraint
Abraham Loeb’s October 2022 comment, “Down to Earth” Limits on Unidentified Aerial Phenomena in Ukraine, approaches the reported characteristics from another direction. He asks what a large object travelling at the claimed speed through dense atmosphere ought to do to the air. This is a physical consistency argument, not a remeasurement of the camera frames.
His calculation makes the energy deposited into the surrounding air depend on the object’s cross-sectional area, the air density and the cube of its speed. Under the large, fast, relatively low-altitude interpretation he examines, the resulting power is enormous. Applying a meteor-based estimate for the fraction emitted as visible light produces a bright fireball expectation. A dark object with those inferred characteristics is therefore difficult to reconcile with the model.
The important conditional is that the sizes, speeds and atmospheric positions must be right. If the range is substantially overestimated, the same angular record can imply a much smaller object and a lower linear speed. Loeb explores a distance ten times smaller, obtaining sizes and speeds he regards as consistent with artillery shells. This is an offered explanation for the scale of the measurements. It is not a recovered shell, a matched firing record or proof that every mark in the study was ammunition.
His argument is particularly sensitive to scaling. Shortening the distance reduces the inferred physical size as well as the inferred speed. Since area changes with size and the power estimate depends strongly on speed, the expected luminosity changes sharply. That is why an uncertain range cannot be treated as a minor adjustment after quoting an impressive speed.
Loeb separately suggests a satellite explanation for the high-altitude bright target. It would be misleading to merge that proposal with his low-altitude argument and announce a single identification for the entire collection. The comment tests whether particular inferred properties are physically plausible. Establishing the identity of each recorded target would require additional observational matching.
The authors continued the study
The authors’ second paper, submitted on 13 November 2022, provides dated examples from August and September 2018 in Kyiv and October 2022 at Vinarivka. It also discusses paired bright-object records dated 17 October 2022. Consequently, this case concerns a research programme containing observations from different years, not one continuous encounter or a collection that can all be dated to wartime 2022.
That paper maintains the colour-based approach and argues against birds and insects using size, angular motion, colour and two-point observations. It explains that a restored dark-target image involves filtering, with some uneven brightness arising from the digital processing. Its appendix explicitly specifies assumptions about scattering, reflectivity and a homogeneous atmosphere. These remain authors’ arguments and estimates; listing them does not establish that the earlier institutional objections were independently resolved. Journal names entered in preprint comments are not treated here as proof of acceptance or peer review.
What the record supports
The available material supports a documented measurement controversy: original reports, an institutional response, named technical objections and a separate physical constraint. It does not establish an extraterrestrial origin, an identified military operation or a common explanation for every target. This account follows published texts and extracted paper text; it does not claim access to the original camera files, an independent calibration, or a visual forensic examination of every figure.
The historical year filter records 2018 and 2022 because the second paper explicitly dates observations in both years. The feature tag “flashes” describes the first paper’s reported rapid bright-target variability. No radar tag is assigned: discussing why something might evade radar is not a radar observation. No water-event tag is inferred from Kyiv’s river setting, and no contact or occupant report is established by this material.
Location and related reading
The map pin is an approximate Kyiv city reference, rounded from the documented city coordinates to 50.4500° N, 30.5236° E. It anchors one of the two study localities; Vinarivka is a separate station about 120 kilometres away. It does not identify a precise recording position, a private property or a point beneath an object. The accompanying panorama was photographed in 2011 and provides geographical context only.
For another case where apparent motion, distance and a proposed conventional explanation must be assessed separately, read Petrozavodsk’s 1977 display. Explore UFO / UAP / USO or return to the Cases directory.