# Zhang 2025: Rapid Brightening of 3I/ATLAS Ahead of Perihelion

> Qicheng Zhang, Karl Battams, 2025. 2 records on Mysteries Department cite it. Zhang, Q., Battams, K. 2025. Rapid Brightening of 3I/ATLAS Ahead of…

Source: https://mysteriesdept.com/sources/SRC0DFPWGSFGSCW/rapid-brightening-of-3i-atlas-ahead-of-perihelion  
Publisher: Mysteries Department  
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[Sources](https://mysteriesdept.com/sources)[3I/ATLAS](https://mysteriesdept.com/mysteries/3i-atlas)Zhang 2025

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# Rapid Brightening of 3I/ATLAS Ahead of Perihelion

Qicheng Zhang, Karl Battams, 2025. _PASP 138, 014403_.

STEREO-A, SOHO/LASCO, GOES-19/CCOR-1 photometry Sep-Oct 2025: brightness ~r^(-7.5+/-1.0); ~4' coma; LASCO colours bluer than the Sun (gas emission).

**3I/ATLAS** Articledoi: **[10.1088/1538-3873/ae2e88](https://doi.org/10.1088/1538-3873/ae2e88)** 0

## Cited by on this site 2 records

[Perihelion at 1.36 au](https://mysteriesdept.com/mysteries/3i-atlas/events/EVT0DFQ70AS1M49/perihelion-at-1-36-au)

EVT

[3I/ATLAS](https://mysteriesdept.com/mysteries/3i-atlas)

The mystery article

MYS

## Cite it

```
Zhang, Q., & Battams, K. (2025). Rapid Brightening of 3I/ATLAS Ahead of Perihelion. PASP 138, 014403. https://doi.org/10.1088/1538-3873/ae2e88
```

[Read it free at arxiv.org](https://arxiv.org/abs/2510.25035)

Key

**SRC** 0DFPWGSFGSCW

Kind

Journal article

Rights

arXiv-nonexclusive

Kept

2 Nov 2026, for editors

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[apollo](https://mysteriesdept.com/u/apollo)

The record

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