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URECAT - UFO Related Entities Catalog

URECAT is a formal catalog of UFO related entities sightings reports with the goal of providing quality information for accurate studies of the topic. Additional information, corrections and reviews are welcome at patrick.gross@inbox.com, please state if you wish to be credited for your contribution or not. The main page of the URECAT catalog is here.

1947, Bonsucesso, Rio de Janeiro. Brazil, Rego:

Brief summary of the event and follow-up:

According to Albert Rosales' CE3 catalog circa 2009, the ufology group GEPUC of Brazil recorded a case in Rio De Janeiro, Brazil, at night in 1947.

Witnesses reportedly saw a low flying luminous triangular shaped craft. Inside what appeared to be a cabin, several moving figures were seen.

Rosales says that around the same time there is was an undocumented reported of a UFO landing and contact with is occupants in a place called Bom Sucesso.

In 1974, ufologist Jader U. Pereira had listed a case in Bonsucesso, Brazil, in 1947. And circa 2008, a website listed the case, without details, saying that there were more than two witnesses and giving one witness name as "Rego".

Basic information table:

Case number: URECAT-001727
Date of event: 1947
Earliest report of event: 1974?
Delay of report: Hour, 3 decades?
Witness reported via: Not known.
First alleged record by: Ufology group GEPUC.
First certain record by: Ufology list Jader U. Pereira.
First alleged record type: Local ufology group.
First certain record type: Ufology list.
This file created on: November 2, 2018
This file last updated on: November 2, 2018
Country of event: Brazil
State/Department: Rio de Janeiro
Type of location: Bonsucesso district.
Lighting conditions: Night
UFO observed: Yes
UFO arrival observed: Not reported.
UFO departure observed: Not reported.
UFO/Entity Relation: Certain
Witnesses numbers: 3 or more.
Witnesses ages: Not reported.
Witnesses types: Not reported.
Photograph(s): No.
Witnesses drawing: No.
Witnesses-approved drawing: No.
Number of entities: Several
Type of entities: Not reported.
Entities height: Not reported.
Entities outfit type: Not reported.
Entities outfit color: Not reported.
Entities skin color: Not reported.
Entities body: Not reported.
Entities head: Not reported.
Entities eyes: Not reported.
Entities mouth: Not reported.
Entities nose: Not reported.
Entities feet: Not reported.
Entities arms: Not reported.
Entities fingers: Not reported.
Entities fingers number: Not reported.
Entities hair: Not reported.
Entities voice: None reported.
Entities actions: Were inside UFO.
Entities/witness interactions: Not reported.
Witness(es) reactions: Observed.
Witness(es) feelings: Not reported.
Witness(es) interpretation: Not reported.
Explanation category: Extraterrestrial visitors or helicopter or invention.
Explanation certainty: Medium.


[Ref. jp1:] JADER U. PEREIRA:

009 /1947 Bonsucesso, Brazil



Location. Rio De Janeiro, Brazil

Date: 1947

Time: night

Witnesses saw a low flying luminous triangular shaped craft, inside what appeared to be a cabin several moving figures could be seen. Around the same time there is was an undocumented reported of a UFO landing and contact with is occupants in a place called Bom Sucesso. No other information.

HC addition

Source: GEPUC Brazil

Type: A & B? Humanoid seen onboard UFO and report of landing and direct contact with humanoids.

HSI: "7"

ROS: "7"

Comments: Again exact description of the humanoids at Bom Sucesso is not given. Appears to be an early triangular shaped object report.

[Ref. ud1:] "UFODNA" WEBSITE:

In 1947 :

Bonsucesso, Brazil

Type 3.1 Saw strange being of masculine sex.

Close encounter with a an unidentified craft and its occupants. An unidentified object at close range and its occupants were observed by more than two witnesses (Rego). One being was seen.

Hynek rating: CE3

Vallee rating: CE3


Webb, David, HUMCAT: Catalogue of Humanoid Reports
Pereira, Jader U. Les Extra-Terrestres, Phenomenes Spatiaux, Paris, 1974




A brilliant triangular object was seen, and occupants were visible inside

Pereira 1974

Points to consider:

Bonsucesso is a neighborhood in the North Zone of Rio de Janeiro, Brazil. GEPUC was a ufology group in Brazil. Unfortunately I did not find more information so far; which lets me with an insufficiently documented case with all possible explanations.

List of issues:

Id: Topic: Severity: Date noted: Raised by: Noted by: Description: Proposal: Status:
1 Data Severe November 2, 2018 Patrick Gross Patrick Gross No primary source available. Help needed. Opened.
2 Ufology Severe November 2, 2018 Patrick Gross Patrick Gross Totally insufficient information. Help needed. Opened.


Extraterrestrial visitors or helicopter or invention.

Sources references:

* = Source I checked.
? = Source I am told about but could not check yet. Help appreciated.

Document history:


Main Author: Patrick Gross
Contributors: None
Reviewers: None
Editor: Patrick Gross

Changes history

Version: Created/Changed By: Date: Change Description:
0.1 Patrick Gross November 2, 2018 Creation, [jp1], [ar1], [pr1], [ud1].
1.0 Patrick Gross November 2, 2018 First published.

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This page was last updated on November 2, 2018.