AstroInspect: a web-based system to organize, assess, and visually inspect astronomical objects

Natanael M. Cardoso; Claudia Mendes de Oliveira; Angela C. Krabbe; Analia V. Smith Castelli; Gustavo B. Oliveira Schwarz; Lilianne Nakazono; Ricardo Demarco; Maiara S. Carvalho; William Schoenell; Tiago Ribeiro; Antonio Kanaan; Antonio M. Saraiva

doi:10.3847/1538-3881/ae4fb1

Research article2026

AstroInspect: a web-based system to organize, assess, and visually inspect astronomical objects

Natanael M. Cardoso, Claudia Mendes de Oliveira, Angela C. Krabbe, Analia V. Smith Castelli, Gustavo B. Oliveira Schwarz, Lilianne Nakazono, Ricardo Demarco, Maiara S. Carvalho, William Schoenell, Tiago Ribeiro, Antonio Kanaan, Antonio M. Saraiva

Corresponding author

The Astronomical Journal, 2026DOI:10.3847/1538-3881/ae4fb1

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Venue info

The Astronomical JournalApril 2026
American Astronomical Society

Impact Factor5.8

Abstract

The rapid growth of imaging and spectroscopic surveys has intensified the need for efficient tools that support visual inspection, a practice that remains essential for tasks such as classification, catalog refinement, and validation of automated methods. Existing solutions, however, often require the use of multiple platforms and complex workflows to integrate heterogeneous data. To address this challenge, we present the first release of the AstroInspect (https://astroinspect.github.io), a web-based system which ensures seamless access to several astronomical resources. The system provides an intuitive graphical user interface (GUI) through which users can upload catalogs of objects defined by celestial coordinates. AstroInspect automatically enriches these catalogs with complementary information, including imaging, spectroscopic, and photometric data retrieved in real time from surveys such as the Sloan Digital Sky Survey (SDSS), the Legacy Surveys (LS), and the Southern Photometric Local Universe Survey (S-PLUS). As an example of its scientific utility, we used AstroInspect to identify H$\alpha$ emission-line galaxies within a 7 deg radius in the direction of the Hydra I cluster (also known as Abell 1060) by visual inspection. Using a candidate set of 981 galaxies selected from S-PLUS photometric data, we produced a catalog of 80 galaxies with confirmed H$\alpha$ emission. These results highlight the potential of AstroInspect to support efficient visual inspection workflows.

AstroInpect Interface#

Public Catalog Documentation#

The Table 1 of the AstroInspect paper contains all H$\alpha$ emission-line galaxies within 5$R_{200}$ ($\approx 7$ deg) of the Hydra I cluster (also known as Abell 1060) (Abell et al., 1989) found by visual inspection using AstroInspect.

Columns prefixed with `sp` are drawn from S-PLUS DR5 (E. V. Lima et al. 2026, in preparation), while those prefixed with `ls` originate from Legacy Survey DR10 [@dey2019]. Columns prefixed with `lit` originate from redshift compilation from the literature [@lima2025]. Columns without these prefixes were derived in this work. All magnitudes are reported in the AB system, and the S-SPLUS magnitudes included in the catalog are only the auto-aperture values.
#	Unit	Column name	Description
1		id	Catalog unique identifier
2	deg	ra	Right Ascension in decimal degrees (J2000)
3	deg	dec	Declination in decimal degrees (J2000)
4	mag	sp_mag_u	S-PLUS DR5 magnitude in the u band
5	mag	sp_mag_g	S-PLUS DR5 magnitude in the g band
6	mag	sp_mag_r	S-PLUS DR5 magnitude in the r band
7	mag	sp_mag_i	S-PLUS DR5 magnitude in the i band
8	mag	sp_mag_z	S-PLUS DR5 magnitude in the z band
9	mag	sp_mag_F378	S-PLUS DR5 magnitude in the F378 band (Balmer jump / [O$_{\rm II}$])
10	mag	sp_mag_F395	S-PLUS DR5 magnitude in the F395 band (Ca H + K)
11	mag	sp_mag_F410	S-PLUS DR5 magnitude in the F410 band (H$\delta$)
12	mag	sp_mag_F430	S-PLUS DR5 magnitude in the F430 band (G band)
13	mag	sp_mag_F515	S-PLUS DR5 magnitude in the F515 band (Mg b triplet)
14	mag	sp_mag_F660	S-PLUS DR5 magnitude in the F660 band (H$\alpha$)
15	mag	sp_mag_F861	S-PLUS DR5 magnitude in the F861 band (Ca triplet)
16-27	mag	sp_mag_err_`[band]`	S-PLUS DR5 magnitude error, where `[band]` is one of: u, g, r, i, z, F378, F395, F410, F430, F515, F660, F861
28	deg	sp_A	S-PLUS DR5 profile RMS along the major axis
29	deg	sp_B	S-PLUS DR5 profile RMS along the minor axis
30	deg	sp_PA	S-PLUS DR5 position angle (CCW/World-x)
31	deg	sp_radius_petro	S-PLUS DR5 Petrosian aperture radius
32	deg	sp_radius_50	S-PLUS DR5 radius enclosing 50% of the total flux
33	deg	sp_radius_90	S-PLUS DR5 radius enclosing 90% of the total flux
34		sp_photoz	S-PLUS DR5 photometric redshift
35		sp_photoz_odds	S-PLUS DR5 photometric redshift odds
36	mag	ls_mag_g	LS DR10 magnitude in the g band
37	mag	ls_mag_r	LS DR10 magnitude in the r band
38	mag	ls_mag_i	LS DR10 magnitude in the i band
39	mag	ls_mag_z	LS DR10 magnitude in the z band
40		ls_type	LS DR10 morphological type (for details, see the documentation )
41		lit_redshift	Spectroscopic redshift
42		lit_redshift_err	Spectroscopic redshift error
43		lit_source	Spectroscopic redshift source from literature
44	km/s	velocity	Velocity derived from spectroscopic redshift
45	km/s	velocity_err	Velocity error
46	km/s	velocity_offset	Velocity difference between the object and the Hydra I cluster, available only for objects with known spectroscopic redshift
47	deg	dist_proj	Sky-projected angular distance between the object and the Hydra I cluster center
48	Mpc	dist	Distance between the object and the Hydra I cluster center, available only for objects with known spectroscopic redshift

References#

Abell, G. O., Corwin, H. G., & Olowin, R. P. (1989). A catalog of rich clusters of galaxies. The Astrophysical Journal Supplement Series, 70, 1. https://doi.org/10.1086/191333

Data

Table 1

Parquettable1.parquet

CSVtable1.csv

VOTabletable1.xml

Citation

@article{astroinspect,
  doi = {10.3847/1538-3881/ae4fb1},
  url = {https://doi.org/10.3847/1538-3881/ae4fb1},
  year = {2026},
  month = {apr},
  publisher = {The American Astronomical Society},
  volume = {171},
  number = {5},
  pages = {290},
  author = {Cardoso, Natanael M. and Mendes de Oliveira, Claudia and Krabbe, Angela C. and Smith Castelli, Analía V. and Oliveira Schwarz, Gustavo B. and Nakazono, Lilianne and Demarco, Ricardo and Carvalho, Maiara S. and Schoenell, William and Ribeiro, Tiago and Kanaan, Antonio and Saraiva, Antonio M.},
  title = {AstroInspect: A Web-based System to Organize, Assess, and Visually Inspect Astronomical Objects},
  journal = {The Astronomical Journal},
}

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