README.md

---
license: cc-by-sa-4.0
configs:
- config_name: default
  data_files:
  - split: train
    path: data/train-*
  - split: validation
    path: data/validation-*
  - split: test
    path: data/test-*
dataset_info:
  features:
  - name: dr8_id
    dtype: string
  - name: ra
    dtype: float64
  - name: dec
    dtype: float64
  - name: brickid
    dtype: int32
  - name: objid
    dtype: int32
  - name: smooth-or-featured_smooth_fraction
    dtype: float32
  - name: smooth-or-featured_featured-or-disk_fraction
    dtype: float32
  - name: smooth-or-featured_artifact_fraction
    dtype: float32
  - name: disk-edge-on_yes_fraction
    dtype: float32
  - name: disk-edge-on_no_fraction
    dtype: float32
  - name: has-spiral-arms_yes_fraction
    dtype: float32
  - name: has-spiral-arms_no_fraction
    dtype: float32
  - name: bar_strong_fraction
    dtype: float32
  - name: bar_weak_fraction
    dtype: float32
  - name: bar_no_fraction
    dtype: float32
  - name: bulge-size_dominant_fraction
    dtype: float32
  - name: bulge-size_large_fraction
    dtype: float32
  - name: bulge-size_moderate_fraction
    dtype: float32
  - name: bulge-size_small_fraction
    dtype: float32
  - name: bulge-size_none_fraction
    dtype: float32
  - name: how-rounded_round_fraction
    dtype: float32
  - name: how-rounded_in-between_fraction
    dtype: float32
  - name: how-rounded_cigar-shaped_fraction
    dtype: float32
  - name: edge-on-bulge_boxy_fraction
    dtype: float32
  - name: edge-on-bulge_none_fraction
    dtype: float32
  - name: edge-on-bulge_rounded_fraction
    dtype: float32
  - name: spiral-winding_tight_fraction
    dtype: float32
  - name: spiral-winding_medium_fraction
    dtype: float32
  - name: spiral-winding_loose_fraction
    dtype: float32
  - name: spiral-arm-count_1_fraction
    dtype: float32
  - name: spiral-arm-count_2_fraction
    dtype: float32
  - name: spiral-arm-count_3_fraction
    dtype: float32
  - name: spiral-arm-count_4_fraction
    dtype: float32
  - name: spiral-arm-count_more-than-4_fraction
    dtype: float32
  - name: spiral-arm-count_cant-tell_fraction
    dtype: float32
  - name: merging_none_fraction
    dtype: float32
  - name: merging_minor-disturbance_fraction
    dtype: float32
  - name: merging_major-disturbance_fraction
    dtype: float32
  - name: merging_merger_fraction
    dtype: float32
  - name: file_name
    dtype: string
  - name: iauname
    dtype: string
  - name: est_petro_th50
    dtype: float64
  - name: mag_r_desi
    dtype: float32
  - name: mag_g_desi
    dtype: float32
  - name: mag_z_desi
    dtype: float32
  - name: petro_theta
    dtype: float32
  - name: petro_th50
    dtype: float32
  - name: petro_th90
    dtype: float32
  - name: petro_phi50
    dtype: float32
  - name: petro_phi90
    dtype: float32
  - name: petro_ba50
    dtype: float32
  - name: petro_ba90
    dtype: float32
  - name: elpetro_ba
    dtype: float32
  - name: elpetro_phi
    dtype: float32
  - name: elpetro_flux_r
    dtype: float32
  - name: elpetro_theta_r
    dtype: float32
  - name: elpetro_mass
    dtype: float32
  - name: sersic_n
    dtype: float32
  - name: sersic_ba
    dtype: float32
  - name: sersic_phi
    dtype: float32
  - name: elpetro_absmag_f
    dtype: float32
  - name: sersic_nmgy_f
    dtype: float32
  - name: elpetro_absmag_n
    dtype: float32
  - name: sersic_nmgy_n
    dtype: float32
  - name: elpetro_absmag_u
    dtype: float32
  - name: sersic_nmgy_u
    dtype: float32
  - name: elpetro_absmag_g
    dtype: float32
  - name: sersic_nmgy_g
    dtype: float32
  - name: elpetro_absmag_r
    dtype: float32
  - name: sersic_nmgy_r
    dtype: float32
  - name: elpetro_absmag_i
    dtype: float32
  - name: sersic_nmgy_i
    dtype: float32
  - name: elpetro_absmag_z
    dtype: float32
  - name: sersic_nmgy_z
    dtype: float32
  - name: redshift_nsa
    dtype: float32
  - name: mag_f
    dtype: float32
  - name: mag_n
    dtype: float32
  - name: mag_u
    dtype: float32
  - name: mag_g
    dtype: float32
  - name: mag_r
    dtype: float32
  - name: mag_i
    dtype: float32
  - name: mag_z
    dtype: float32
  - name: u_minus_r
    dtype: float32
  - name: elpetro_mass_log
    dtype: float32
  - name: dr7objid_ossy
    dtype: float64
  - name: ra_ossy
    dtype: float64
  - name: dec_ossy
    dtype: float64
  - name: redshift_ossy
    dtype: float64
  - name: log_l_oiii
    dtype: float64
  - name: fwhm
    dtype: float64
  - name: e_fwhm
    dtype: float64
  - name: equiv_width
    dtype: float64
  - name: log_l_ha
    dtype: float64
  - name: log_m_bh
    dtype: float64
  - name: upper_e_log_m_bh
    dtype: float64
  - name: lower_e_log_m_bh
    dtype: float64
  - name: log_bolometric_l
    dtype: float64
  - name: ra_alf
    dtype: float64
  - name: dec_alf
    dtype: float64
  - name: W50
    dtype: float64
  - name: sigW
    dtype: float64
  - name: W20
    dtype: float64
  - name: HIflux
    dtype: float64
  - name: sigflux
    dtype: float64
  - name: SNR
    dtype: float64
  - name: RMS
    dtype: float64
  - name: Dist
    dtype: float64
  - name: sigDist
    dtype: float64
  - name: logMH
    dtype: float64
  - name: siglogMH
    dtype: float64
  - name: ra_jhu
    dtype: float32
  - name: dec_jhu
    dtype: float32
  - name: fibre_sfr_avg
    dtype: float32
  - name: fibre_sfr_entropy
    dtype: float32
  - name: fibre_sfr_median
    dtype: float32
  - name: fibre_sfr_mode
    dtype: float32
  - name: fibre_sfr_p16
    dtype: float32
  - name: fibre_sfr_p2p5
    dtype: float32
  - name: fibre_sfr_p84
    dtype: float32
  - name: fibre_sfr_p97p5
    dtype: float32
  - name: fibre_ssfr_avg
    dtype: float32
  - name: fibre_ssfr_entropy
    dtype: float32
  - name: fibre_ssfr_median
    dtype: float32
  - name: fibre_ssfr_mode
    dtype: float32
  - name: fibre_ssfr_p16
    dtype: float32
  - name: fibre_ssfr_p2p5
    dtype: float32
  - name: fibre_ssfr_p84
    dtype: float32
  - name: fibre_ssfr_p97p5
    dtype: float32
  - name: total_ssfr_avg
    dtype: float32
  - name: total_ssfr_entropy
    dtype: float64
  - name: total_ssfr_flag
    dtype: float64
  - name: total_ssfr_median
    dtype: float32
  - name: total_ssfr_mode
    dtype: float32
  - name: total_ssfr_p16
    dtype: float32
  - name: total_ssfr_p2p5
    dtype: float32
  - name: total_ssfr_p84
    dtype: float32
  - name: total_ssfr_p97p5
    dtype: float32
  - name: total_sfr_avg
    dtype: float32
  - name: total_sfr_entropy
    dtype: float64
  - name: total_sfr_flag
    dtype: float32
  - name: total_sfr_median
    dtype: float32
  - name: total_sfr_mode
    dtype: float32
  - name: total_sfr_p16
    dtype: float32
  - name: total_sfr_p2p5
    dtype: float32
  - name: total_sfr_p84
    dtype: float32
  - name: total_sfr_p97p5
    dtype: float32
  - name: photoz_id
    dtype: float64
  - name: ra_photoz
    dtype: float64
  - name: dec_photoz
    dtype: float64
  - name: photo_z
    dtype: float64
  - name: photo_zerr
    dtype: float64
  - name: spec_z
    dtype: float64
  - name: mag_abs_g_photoz
    dtype: float64
  - name: mag_abs_r_photoz
    dtype: float64
  - name: mag_abs_z_photoz
    dtype: float64
  - name: mass_inf_photoz
    dtype: float64
  - name: mass_med_photoz
    dtype: float64
  - name: mass_sup_photoz
    dtype: float64
  - name: sfr_inf_photoz
    dtype: float64
  - name: sfr_sup_photoz
    dtype: float64
  - name: ssfr_inf_photoz
    dtype: float64
  - name: ssfr_med_photoz
    dtype: float64
  - name: ssfr_sup_photoz
    dtype: float64
  - name: sky_separation_arcsec_from_photoz
    dtype: float64
  - name: redshift
    dtype: float64
  - name: est_petro_th50_kpc
    dtype: float64
  - name: __index_level_0__
    dtype: int64
  splits:
  - name: train
    num_bytes: 7885463871
    num_examples: 8474566
  - name: validation
    num_bytes: 80485046
    num_examples: 86499
  - name: test
    num_bytes: 80457410
    num_examples: 86471
  download_size: 3096436101
  dataset_size: 8046406327
tags:
- astronomy
- huggingscience
- science
size_categories:
- 1M<n<10M
---
<div align="center">
<img src="https://huggingface.co/datasets/Smith42/galaxies_metadata/resolve/main/galaxy_captions.png" alt="galaxy text" width="100%"/>
</div>

# Galaxy metadata for pairing with `smith42/galaxies' dataset

Here we have metadata for ~8.5 million galaxies.
This metadata can be paired with galaxy jpg cutouts from the [DESI legacy survey DR8](https://www.legacysurvey.org/dr8/description/),
the cut outs are found here: [https://huggingface.co/datasets/Smith42/galaxies](https://huggingface.co/datasets/Smith42/galaxies).

I've split away 1% of the metadata into a test set, and 1% into a validation set.
The remaining 98% of the metadata comprise the training set.

## Useful links

Paper here: [https://arxiv.org/abs/2405.14930](https://arxiv.org/abs/2405.14930)

Models here: [https://huggingface.co/Smith42/astroPT](https://huggingface.co/Smith42/astroPT)

Code here: [https://github.com/smith42/astroPT](https://github.com/smith42/astroPT)

Upstream catalogue is [on Zenodo](https://zenodo.org/records/8360385) and paper describing the catalogue is available as [Walmsley+2023](https://doi.org/10.1093/mnras/stad2919).

If you find this dataset useful please consider citing the sources below 🚀🚀:

```
@article{ref_dey2019,
	author = {Dey, A. and Schlegel, D. J. and Lang, D. and Blum, R. and Burleigh, K. and Fan, X. and Findlay, J. R. and Finkbeiner, D. and Herrera, D. and Juneau, S. and others},
	title = {{Overview of the DESI Legacy Imaging Surveys}},
	journal = {Astronomical Journal},
	volume = {157},
	number = {5},
	pages = {168},
	year = {2019},
	issn = {1538-3881},
	publisher = {The American Astronomical Society},
	doi = {10.3847/1538-3881/ab089d}
}
```

```
@article{ref_walmsley2023,
	author = {Walmsley, M. and G{\ifmmode\acute{e}\else\'{e}\fi}ron, T. and Kruk, S. and Scaife, A. M. M. and Lintott, C. and Masters, K. L. and Dawson, J. M. and Dickinson, H. and Fortson, L. and Garland, I. L. and others},
	title = {{Galaxy Zoo DESI: Detailed morphology measurements for 8.7M galaxies in the DESI Legacy Imaging Surveys}},
	journal = {Monthly Notices of the Royal Astronomical Society},
	volume = {526},
	number = {3},
	pages = {4768--4786},
	year = {2023},
	issn = {0035-8711},
	publisher = {Oxford Academic},
	doi = {10.1093/mnras/stad2919}
}
```

```
@article{ref_smith2024,
	author = {Smith, M. J. and Roberts, R. J. and Angeloudi, E. and Huertas-Company, M.},
	title = {{AstroPT: Scaling Large Observation Models for Astronomy}},
	journal = {ArXiv e-prints},
	year = {2024},
	eprint = {2405.14930},
	doi = {10.48550/arXiv.2405.14930}
}
```